Home / Calculators / Health Body measurement calculators Bedridden Patient Height Calculator Bedridden Patient Height Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. ABSI Calculator ABSI Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. BAI Calculator BAI Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. BRI Calculator BRI Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. BSA Calculator BSA Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. FFMI Calculator FFMI Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. FFMI Calculator (Fat-Free Mass Index) Use this FFMI calculator to estimate fat-free mass index from height, weight, and body fat. Ponderal Index Calculator Ponderal Index Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. RFM Calculator RFM Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Relative Fat Mass Calculator Relative Fat Mass Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Medication dosage calculators Diabetes and cholesterol calculators LDL Calculator LDL Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. VLDL Calculator VLDL Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Risk DM Risk DM covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Sleep calculators AHI Calculator AHI Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Sleep Debt Calculator Sleep Debt Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Wake-Up Calculator Use this wake-up calculator to estimate bedtime for a target wake time. 90 Minute Sleep Cycle Calculator Use this 90 minute sleep cycle calculator to estimate bedtime around sleep cycles. Epworth Sleepiness Scale Calculator Epworth Sleepiness Scale Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. STOP-BANG Calculator STOP-BANG Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Sleep and fertility calculators Public health calculators Incidence Rate Calculator Incidence Rate Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Mortality Rate Calculator Mortality Rate Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. NNT Calculator NNT Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Vaccine Efficacy Calculator Vaccine Efficacy Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Alcohol Unit Calculator Alcohol Unit Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Standard Drink Calculator Standard Drink Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Pediatric and infant calculators Fitness calculators Cardiovascular calculators Pulse Pressure Calculator Pulse Pressure Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Cardiac Output Calculator Cardiac Output Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Cardiac Index Calculator Cardiac Index Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Stroke Volume Calculator Stroke Volume Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Rate Pressure Product Calculator Rate Pressure Product Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Cerebral Perfusion Pressure Calculator Cerebral Perfusion Pressure Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. ABI Calculator ABI Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Duke Treadmill Score Calculator Duke Treadmill Score Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Duke Score Calculator Use this Duke score calculator to estimate exercise treadmill risk. RCRI Calculator RCRI Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. RCRI RCRI covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. PVR PVR covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Cardiac imaging and ECG calculators Health screening calculators BAC Calculator BAC Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Corrected Calcium Calculator Corrected Calcium Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Pack Year Calculator Pack Year Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. URR Calculator URR Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Metabolic Syndrome Calculator Metabolic Syndrome Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. ACR Calculator Use this ACR calculator to estimate urine albumin to creatinine ratio. PSA Density Calculator Use this PSA density calculator to estimate prostate-specific antigen density. PSA Doubling Time Calculator Use this PSA doubling time calculator to estimate prostate-specific antigen doubling time. Behavioral and mental health calculators GAD-7 Calculator GAD-7 Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. PHQ-9 Calculator PHQ-9 Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. AUDIT-C Calculator AUDIT-C Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. AUDIT Test Calculator AUDIT Test Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Chest pain and anticoagulation calculators Centor Score Calculator Centor Score Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. HAS-BLED Calculator HAS-BLED Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. HEART Score Calculator HEART Score Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. CHA2DS2-VASc Calculator CHA2DS2-VASc Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. DAPT Calculator DAPT Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Oncology calculators Clinical scoring calculators CAGE Questionnaire Calculator CAGE Questionnaire Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Glasgow Coma Scale Calculator Glasgow Coma Scale Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. qSOFA Calculator qSOFA Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. qSOFA qSOFA covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. qSOFA Calculator Use this qSOFA calculator to estimate sepsis risk. Centor Score Calculator Centor Score Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Centor Centor covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Wells PE Calculator Use this Wells PE calculator to estimate pulmonary embolism probability. SOFA Score Calculator Use this SOFA score calculator to estimate organ failure severity. MEWS Score Calculator Use this MEWS score calculator to estimate early warning risk. Padua Score Calculator Use this Padua score calculator to estimate venous thromboembolism risk. Fagerstrom Test for Nicotine Dependence Calculator Use this Fagerstrom test for nicotine dependence calculator to estimate smoking dependence. EPDS Calculator Use this EPDS calculator to estimate postpartum depression screening risk. Lab and renal calculators FENA Calculator FENA Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. FEUrea Calculator FEUrea Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Protein/Creatinine Ratio Calculator Use this protein/creatinine ratio calculator to estimate urine protein to creatinine ratio. Light's Criteria Light's Criteria covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Hematology calculators Coagulation and blood management calculators Mentzer Index Calculator Mentzer Index Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. INR Calculator INR Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Iron Deficiency Calculator Iron Deficiency Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Age-Adjusted D-Dimer Calculator Age-Adjusted D-Dimer Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. 4T Score Calculator 4T Score Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Respiratory calculators A-a Gradient Calculator A-a Gradient Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. RSBI Calculator RSBI Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Peak Flow Calculator Peak Flow Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Peak Flow Peak Flow covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Endotracheal Tube Size Calculator Endotracheal Tube Size Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Electrolytes and fluids calculators Acid Base Calculator Acid Base Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Bicarbonate Deficit Calculator Bicarbonate Deficit Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Corrected Magnesium Calculator Corrected Magnesium Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Winters Formula Calculator Winters Formula Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. More Health calculators BMR Calculator BMR Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. Gout Diagnosis Calculator Gout Diagnosis Calculator covers the formula, inputs, worked example, result interpretation, and common mistakes for the topic. BAI Calculator - Body Adiposity Index Use this BAI calculator to estimate body fat from hip circumference and height. Face Shape Calculator Use this face shape calculator to estimate face shape from facial measurements. BRI Calculator - Body Roundness Index Use this BRI calculator to estimate body roundness from height and waist circumference. BSA Calculator - Body Surface Area Use this BSA calculator to estimate body surface area from height and weight. Bedridden Patient Height Calculator Use this bedridden patient height calculator to estimate stature from lying measurements. Ponderal Index Calculator Use this ponderal index calculator to estimate body mass relative to height cubed. Relative Fat Mass Calculator Use this relative fat mass calculator to estimate body fat from height and waist circumference. Height Calculator Use this height calculator to estimate or compare height measurements. Depression PHQ Calculator Use this depression PHQ calculator to estimate PHQ-9 screening results. Drug Half-Life Calculator Use this drug half-life calculator to estimate medication elimination time. DASI Calculator Use this DASI calculator to estimate Duke Activity Status Index, METs, and VO2 peak. CIWA Calculator Use this CIWA calculator to estimate CIWA-Ar withdrawal severity. DUDIT Calculator Use this DUDIT calculator to estimate drug use disorder screening score. EASI Score Calculator Use this EASI score calculator to estimate eczema area and severity index. BMR Calculator (Basal Metabolic Rate, Mifflin St Jeor Equation) Use this BMR calculator to estimate basal metabolic rate from body data. Harris-Benedict Calculator (Basal Metabolic Rate) Use this Harris-Benedict calculator to estimate basal metabolic rate. Katch-McArdle Calculator Use this Katch-McArdle calculator to estimate BMR from lean body mass. Calorie Calculator Use this calorie calculator to estimate daily calorie needs. Calorie Deficit Calculator Use this calorie deficit calculator to estimate diet deficits and timelines. Carb Calculator (Carbohydrates) Use this carb calculator to estimate carbohydrate targets from calories. Diet Risk Score Calculator Use this diet risk score calculator to estimate diet quality risk. DRI Calculator Use this DRI calculator to estimate recommended daily nutrient intake. EER Calculator — Estimated Energy Requirement Use this EER calculator to estimate daily energy requirements. Fat Intake Calculator Use this fat intake calculator to estimate fat targets from calories. Fiber Calculator Use this fiber calculator to estimate daily fiber targets. IIFYM Calculator (If It Fits Your Macros) Use this IIFYM calculator to estimate macro targets from goals. Keto Calculator Use this keto calculator to estimate ketogenic macro targets. Macro Calculator Use this macro calculator to estimate carbohydrate, protein, and fat targets. Meal Calorie Calculator Use this meal calorie calculator to split calories across meals. Micronutrient Calculator Use this micronutrient calculator to estimate recommended nutrient intake. Net Carbs Calculator Use this net carbs calculator to estimate digestible carbohydrates. Protein Calculator Use this protein calculator to estimate daily protein targets. RMR Calculator Use this RMR calculator to estimate resting metabolic rate. Calorie Intake Calculator (Simple) Use this simple calorie intake calculator to estimate daily calorie intake. TDEE Calculator - Total Daily Energy Expenditure Use this TDEE calculator to estimate total daily energy expenditure. Vitamin Calculator Use this vitamin calculator to estimate recommended vitamin intake. Vitamin A Calculator Use this vitamin A calculator to estimate vitamin A intake. Vitamin D Calculator Use this vitamin D calculator to estimate vitamin D intake. mmol/L to mg/dL Converter Use this mmol/L to mg/dL converter to switch between common glucose units. Sleep Calculator Use this sleep calculator to estimate sleep needs and scheduling. Sleep Cycle Calculator Use this sleep cycle calculator to estimate bedtime around sleep cycles. Sleep Time Calculator Use this sleep time calculator to estimate bedtime for a target wake time. Sleep Debt Calculator Use this sleep debt calculator to estimate accumulated sleep debt. STOP-BANG Calculator Use this STOP-BANG calculator to estimate sleep apnea risk. Epworth Sleepiness Scale Calculator Use this Epworth Sleepiness Scale calculator to estimate daytime sleepiness. AHI Calculator | Apnea-Hypopnea Index Use this AHI calculator to estimate apnea-hypopnea index. Reticulocyte Count Calculator Use this reticulocyte count calculator to estimate absolute reticulocyte count. Centor Score Calculator Use this Centor score calculator to estimate strep throat likelihood. GAD-7 Calculator Use this GAD-7 calculator to estimate generalized anxiety severity. PHQ-9 Calculator Use this PHQ-9 calculator to estimate depression severity. AUDIT-C Calculator Use this AUDIT-C calculator to estimate alcohol misuse screening risk. AUDIT Test Calculator Use this AUDIT test calculator to estimate alcohol use disorder risk. HAS-BLED Calculator Use this HAS-BLED calculator to estimate bleeding risk. HEART Score Calculator Use this HEART score calculator to estimate chest pain risk. 4T Score Calculator Use this 4T score calculator to estimate heparin-induced thrombocytopenia probability. 4TS Score Calculator Use this 4TS score calculator to estimate heparin-induced thrombocytopenia probability. CHA2DS2-VASc Calculator Use this CHA2DS2-VASc calculator to estimate atrial fibrillation stroke risk. DAPT Calculator Use this DAPT calculator to estimate benefit from prolonged dual antiplatelet therapy. MIPI Calculator Use this MIPI calculator to estimate mantle cell lymphoma prognosis. Gout Diagnosis Calculator Use this gout diagnosis calculator to estimate gout probability using the Janssens rule. Alvarado Score Calculator Use this Alvarado score calculator to estimate appendicitis probability. Aldrete Score Calculator Use this Aldrete score calculator to estimate recovery readiness after anesthesia. Barthel Index Calculator Use this Barthel index calculator to estimate independence in daily activities. BASDAI Calculator Use this BASDAI calculator to estimate ankylosing spondylitis disease activity. Beighton Score Calculator Use this Beighton score calculator to estimate generalized joint hypermobility. BIMS Calculator Use this BIMS calculator to estimate brief interview for mental status score. Bishop Score Calculator Use this Bishop score calculator to estimate cervical favorability. Bladder Volume Calculator Use this bladder volume calculator to estimate bladder volume from ultrasound dimensions. Bee Calculator Use this bee calculator to estimate basal energy expenditure. Water Intake Calculator Use this water intake calculator to estimate daily water needs. Incidence Rate Calculator Use this incidence rate calculator to estimate incidence from cases and person-time. Mortality Rate Calculator Use this mortality rate calculator to estimate death rates from events and person-time. NNT Calculator Use this NNT calculator to estimate number needed to treat. Vaccine Efficacy Calculator Use this vaccine efficacy calculator to estimate efficacy from attack rates. Alcohol Unit Calculator Use this alcohol unit calculator to estimate alcohol units from volume and strength. Standard Drink Calculator Use this standard drink calculator to estimate standard drinks from volume and ABV. LDL Calculator Use this LDL calculator to estimate LDL cholesterol. VLDL Calculator Use this VLDL calculator to estimate VLDL cholesterol. Metabolic Syndrome Calculator Use this metabolic syndrome calculator to estimate metabolic syndrome risk. A-A Gradient Calculator Use this A-A gradient calculator to estimate alveolar-arterial oxygen difference. ABI Calculator Use this ABI calculator to estimate ankle-brachial index. Aortic Valve Area Calculator Use this aortic valve area calculator to estimate valve area from echo measurements. Cardiac Index Calculator Use this cardiac index calculator to estimate cardiac index from output and body surface area. Cardiac Output Calculator Use this cardiac output calculator to estimate blood pumped per minute. Cerebral Perfusion Pressure Calculator Use this cerebral perfusion pressure calculator to estimate CPP from MAP and ICP. ECG Boxes Seconds Calculator Use this ECG boxes seconds calculator to convert boxes to time. ECG Heart Rate Calculator Use this ECG heart rate calculator to estimate heart rate from RR interval. EROA Calculator Use this EROA calculator to estimate effective regurgitant orifice area. PISA Calculator Use this PISA calculator to estimate valve area, regurgitant volume, and EROA. ICH Volume Calculator Use this ICH volume calculator to estimate intracerebral hemorrhage volume. LV Mass Index Calculator Use this LV mass index calculator to estimate indexed left ventricular mass. Rate Pressure Product Calculator Use this rate pressure product calculator to estimate myocardial workload. Stroke Volume Calculator Use this stroke volume calculator to estimate ejected blood volume. EDD Calculator Use this EDD calculator to estimate estimated due date. Pearl Index Calculator Use this Pearl index calculator to estimate contraceptive effectiveness. Period Calculator Use this period calculator to estimate menstrual cycle timing. BAC Calculator Use this BAC calculator to estimate blood alcohol concentration. CAGE Questionnaire Calculator Use this CAGE questionnaire calculator to screen for alcohol use risk. Pack Years Calculator Use this pack years calculator to estimate lifetime cigarette exposure. Creatinine Clearance Calculator Use this creatinine clearance calculator to estimate renal clearance. FENA Calculator Use this FENA calculator to estimate fractional excretion of sodium. FEUrea Calculator Use this FEUrea calculator to estimate fractional excretion of urea. GFR Calculator Use this GFR calculator to estimate kidney filtration rate. URR Calculator Use this URR calculator to estimate urea reduction ratio. Acid Base Calculator Use this acid base calculator to interpret ABG values. Bicarbonate Deficit Calculator Use this bicarbonate deficit calculator to estimate bicarbonate replacement needs. Corrected Calcium Calculator Use this corrected calcium calculator to adjust calcium for albumin. Corrected Magnesium Calculator Use this corrected magnesium calculator to adjust magnesium for albumin. Drops Per Minute Calculator Use this drops per minute calculator to estimate infusion drip rate. Winters Formula Calculator Use this Winters formula calculator to estimate respiratory compensation. Age-Adjusted D-dimer Calculator Use this age-adjusted D-dimer calculator to estimate a D-dimer cutoff. Hct Hgb Ratio Calculator Use this Hct Hgb ratio calculator to compare hematocrit and hemoglobin. INR Calculator Use this INR calculator to estimate international normalized ratio. Iron Deficiency Calculator Use this iron deficiency calculator to estimate iron deficit. Mentzer Index Calculator Use this Mentzer index calculator to help distinguish anemia causes. Baby's Milk Intake Calculator Use this baby's milk intake calculator to estimate baby feeding needs. Exclusive Pumping Calculator Use this exclusive pumping calculator to estimate pumping schedule. GIR Calculator Use this GIR calculator to estimate glucose infusion rate. RSBI Calculator Use this RSBI calculator to estimate rapid shallow breathing index. GCS Calculator Use this GCS calculator to estimate Glasgow Coma Scale. 20/20 Vision Calculator for 2020 How to keep a perfect 20/20 vision for 2020? First, find out what is your risk of vision impairment is. Use this calculator, and you'll also learn how to prevent it. ACFT Calculator This brand new ACFT calculator determines whether you're ready to take the new Army Combat Fitness Test and get into your dream unit. Adderall Dosage Calculator The Adderall dosage calculator computes the proper dose of Adderall (amphetamine) for both narcolepsy and ADHD. Addiction Calculator Addiction calculator tells you how much shorter your life would be if you were addicted to alcohol, cigarettes, cocaine, methamphetamine, methadone, or heroin. Adrenal Washout Calculator The adrenal washout calculator is a tool that you can use to diagnose an adrenal adenoma. AFT Calculator — US Army Fitness Test This AFT calculator will allow you to calculate your points in the US Army Fitness Test and let you know if you'll pass. Air Force PT Calculator The Air Force PT calculator allows you to estimate the number of points and performance level achieved during a physical fitness test. Aleve Dosage Calculator The Aleve dosage calculator computes the right amount of naproxen you need. Alzheimer’s Life Expectancy Calculator The Alzheimer’s life expectancy calculator will help you determine the approximate life expectancy of someone with Alzheimer's disease according to the disease's stages. APACHE II Calculator The APACHE II calculator computes the ICU mortality according to the patient's characteristics, physical examination, and lab tests results. APFT Calculator The APFT calculator finds the Army Physical Fitness Test score. Arterial Age Calculator The arterial age calculator will count the age of your arteries from the calcium score. Baby Eye Color Calculator The baby eye color calculator is a perfect tool for all curious parents looking to predict the color of the eyes their newborn or soon-to-be-born could have. Baby Percentile Calculator The baby percentile calculator allows you to check your baby's development pace when it comes to their weight, length/height, and head circumference. BBT Calculator | Basal Body Temperature The BBT calculator allows you to adjust your basal body temperature according to your waking up time. BED Calculator The BED calculator allows you to compute the biologically effective dose and the equivalent total dose in 2-Gy fraction. Benadryl Dosage Calculator Use the benadryl dosage calculator to check how much Benadryl you should take yourself or give to your little one. Benzodiazepine Conversion Calculator Our benzodiazepine conversion calculator allows you to compute the equivalent doses of drugs when switching from one to another. Berg Balance Test Calculator Use the Berg Balance Test calculator to assess dynamic and static balance and the risk of falls. Biden’s Vaccine Plan Calculator Our Biden’s vaccine plan calculator can tell you how long and how fast will the US vaccination goal be achieved. Birth Control Calculator This birth control calculator gives an insight into how much we spend on each type of contraception method and its effectiveness. Birth Weight Percentile Calculator Use this birth weight percentile calculator to estimate whether the weight of your newborn is within the average. BMI Percentile Calculator Use the BMI percentile calculator to assess your child's development pattern and learn where they place among their peers. Breast Cancer Recurrence Risk Calculator We created this breast cancer recurrence risk calculator to help you determine the risk of local recurrence of breast cancer. Breast Cancer Risk Calculator This calculator estimates 5-year and long term risk of developing breast cancer based on Gail model. Breastfeeding Calorie Calculator The breastfeeding calorie calculator tells you how many calories you need to consume daily to keep yourself healthy during lactation. Caffeine Calculator Are you a coffee addict? Check how much caffeine you had today with this caffeine calculator! Carboplatin Calculator Using the Calvert formula, the Carboplatin calculator estimates the total carboplatin dose, expressed in mg. CDAI calculator (Crohn's Disease Activity Index) The CDAI calculator (Crohn's Disease Activity Index calculator) determines the severity of symptoms in patients with Crohn's disease. Chances of Having Twins Calculator With this chances of having twins calculator, you can estimate the odds of giving birth to twins, triplets, or maybe quadruplets. Charlson Comorbidity Index Calculator Charlson Comorbidity Index calculator estimates survival in patients with multiple comorbidities. Cigarette Calculator With this cigarette calculator, you can estimate the number of cigarettes you have smoked so far. Coronavirus Protection - Swiss Cheese Model Calculator The Swiss Cheese Model for Coronavirus calculator gives you an idea of how to build your own defense wall against COVID-19 to finally defeat this pandemic. COVID-19 Mortality Risk Calculator The COVID-19 risk factors calculator was created to improve public awareness about the importance of staying at home and isolating yourself during a pandemic. COVID-19 Vaccine Production Calculator The vaccine production calculator lets you know how long it would take to produce a vaccine against a disease such as COVID-19. CVD Risk Calculator – Cardiovascular Disease 10-year Risk The CVD risk calculator enables you to estimate your risk of having severe cardiovascular disease (including heart attack) within the following ten years. Denver HIV Risk Score Calculator The Denver HIV risk score calculator identifies patients who are at higher risk of being infected with HIV and, therefore, should receive a test. Diabetic Ketoacidosis Calculator Diabetic ketoacidosis calculator allows you to quickly assess the patient in terms of possible ketoacidosis according to the American Diabetes Association criteria. DIC Syndrome Calculator DIC syndrome calculator estimates the risk of disseminated intravascular coagulopathy in your patient. Diffuse Large B-cell Lymphoma Prognosis Calculator The diffuse large B-cell lymphoma prognosis calculator is a tool for assessing risk & survival in DLBCL. Dog Walking Benefits Calculator Measure the overall health benefits of walking your dog, combining physical fitness and mental wellness metrics. Doppler Echo Cardiac Output Calculator The Doppler echo cardiac output calculator allows you to perform all hemodynamic calculations for the non-invasive determination of cardiac output. Dosage Calculator This dosage calculator calculates the appropriate dose of any medication based on your weight. Egg Freezing Calculator The egg freezing calculator computes the probability of having at least one, two, and three live births based on the number of oocytes frozen. EORTC Bladder Cancer Recurrence and Progression Calculator The EORTC bladder cancer recurrence and progression calculator enables you to calculate the chance of recurrence and progression of bladder cancer. EtG Calculator Use our EtG calculator to check your EtG level before taking a urine test, and read our article for insightful facts about EtG detection times. Event Risk Calculator - Coronavirus Our COVID-19 event planning tool allows you to calculate the number of infected attendees at your event using real-time data. Fatigue Severity Scale Calculator Use this fatigue severity scale calculator to determine the impact of fatigue. Fertility by Age Calculator This fertility by age calculator shows your chances of getting pregnant based on your age. Fetal Weight Percentile Calculator The fetal weight percentile calculator allows you to estimate your child's growth rate in comparison to the general population. Finnegan Score Calculator This Finnegan score calculator facilitates the assessment of a baby with neonatal abstinence syndrome. Fish Oil Calculator The fish oil calculator tells you the recommended dosage of fish oil based on your age and health condition. Flange Size Calculator Use this flange size calculator to get the right diameter of your breast pump flange. Frailty Index Calculator The frailty index calculator educates you on existing frailty assessment methods and offers a ready-to-go frailty questionnaire. Framingham Risk Calculator Framingham risk calculator allows you to compute the risk of a heart attack or coronary death for people aged 30-79. Free Testosterone Calculator — with Bioavailable Levels Use our free testosterone calculator (with bioavailable levels) to estimate volumes of free and bioavailable testosterone fractions in your blood. Gabapentin Dosage Calculator The gabapentin dosage calculator provides access to different gabapentin dosage regimens and computes its correct dose. Gorlin Formula Calculator The Gorlin formula calculator can help you find the areas of the aortic and mitral valves which are used in the assessment of the stenosis severity. GRACE Calculator GRACE calculator allows you to compute mortality of acute coronary syndrome patients: in-hospital, and within 6 months from admission. Gupta Risk Calculator Use this Gupta risk calculator to estimate a patient's risk of myocardial infarction or cardiac arrest during and after a surgery. Gut Microbiome Score Calculator This gut microbiome score calculator evaluates your lifestyle choices and provides easy-to-understand tips for improving your gut health. Hand Sanitizer Calculator - Coronavirus The hand sanitizer calculator will tell you how much hand sanitizer you need, and how long your supplies will last for. Happiness Calculator The happiness calculator will help you measure your subjective happiness according to Subjective Happiness Scale (SHS). hCG Levels Calculator Manage your health with Our hCG levels calculator. Monitor hCG doubling time & discover why we don't recommend the hCG diet. Start Today! Head Circumference Percentile Calculator Are you curious about how is your child is developing compared to their peers? Check it with this head circumference percentile calculator. Heart Failure Life Expectancy Calculator The heart failure life expectancy calculator provides you with the 1- and 3-year survival odds in people with congestive heart failure. Height Percentile Calculator This height percentile calculator is a tool for quick assessment of child's height. Come and see where their height (or length) lies among their peers. Hot Car Calculator The hot car calculator shows how fast a car's interior heats up during a summer day. HSI Calculator — Heaviness of Smoking Index The HSI calculator estimates nicotine dependence using the Heaviness of Smoking Index questionnaire. Hydroxychloroquine Dose Calculator Hydroxychloroquine dose calculator allows you to compare your patients' dose to the recommended amount of hydroxychloroquine and assess its retinopathy risk. ICH Score Calculator This ICH score calculator estimates the mortality risk of a patient in the 30 days after an intracerebral hemorrhage. Implantation Calculator Try our implantation calculator to discover your implantation date for both natural conception and any fertility treatments! Infant Tylenol Dosage Calculator Check the infant Tylenol dosage calculator to find out how much Tylenol you should give to your little one. Infectious Disease and Epidemic Calculator (SIR Model) The infectious disease and epidemic calculator uses the SIR model to give you the power to play with and understand the evolution of an epidemic. Injury Severity Score Calculator The Injury Severity Score calculator helps to assess trauma severity, especially in patients with multiple injuries. Insulin Dosage Calculator The insulin dosage calculator was created to help you calculate your mealtime insulin dose with little effort! IQ Percentile Calculator IQ percentile calculator determines the percentage of people whose intelligence quotient is lower or equal to yours. Isotretinoin Dose Calculator Isotretinoin dose calculator allows you to count your cumulative and daily dose of oral isotretinoin (or Accutane®) and estimates the duration of your therapy. IVIG Dose Calculator The IVIG dose calculator computes the immunoglobulin per weight of the patient and the Rh(D) immune globulin needed to prevent hemolytic disease in newborns. Kidney Failure Risk Calculator The kidney failure risk calculator allows you to compute the probability of a renal failure within five years. Kidney STONE Calculator for Percutaneous Neprolithotomy Use the kidney STONE calculator to estimate the chances of success for a single percutaneous nephrolithotomy procedure. Kt/V Calculator Daugirdas Our Kt/V calculator allows you to painlessly estimate the efficacy and adequacy of a hemodialysis. Levothyroxine Dosage Calculator Levothyroxine dosage calculator helps you to determine the daily dose of levothyroxine and target TSH (thyroid-stimulating hormone) for your patient. Lidocaine Dose Calculator The lidocaine dose calculator helps you estimate the maximum allowable dose of lidocaine (local anesthetic). Lille Score Calculator The Lille score calculator allows you to discover the 6-month survival rate in patients with alcoholic hepatitis treated with steroids. Local Anesthetic Calculator Use this local anesthetic calculator to determine the maximum allowable subcutaneous dose of local anesthetic without epinephrine. LRINEC Score Calculator The **LRINEC score calculator** helps diagnose **necrotizing fasciitis** by using your patient's lab results. Lung Cancer Risk Calculator The lung cancer risk calculator estimates your chance of getting lung cancer. Lung Nodule Growth Rate Calculator The lung nodule growth rate calculator is a simple tool for calculating the probability of lung cancer Maddrey's Discriminant Function Calculator The Maddrey's discriminant function calculator uses Maddrey's discriminant function to evaluate the prognosis of alcoholic hepatitis. Mask vs. No Mask Calculator We created the face mask calculator to raise public awareness and encourage people to wear face masks to protect themselves and others. Max Vaccine Immunity Calculator The post-vaccine immunity calculator will tell you the exact day when you can finally feel safe from COVID-19. MCA Calculator The MCA calculator find the possible risk of fetal anemia in single and twin pregnancies. Medical Radiation Calculator Find the effective radiation dose from standard medical procedures with our medical radiation calculator. Medicine 3 Times a Day Calculator The medicine 3 times a day calculator helps you find out the times to take your medicine with even time spacing for 2, 3, or 4 daily doses. Melatonin Dosage Calculator Melatonin dosage calculator allows you to check the preferred melatonin dosage for your indication and the amount of medication you need to buy for a given therapy length. MELD Calculator (Model for End-Stage Liver Disease) This MELD calculator helps you prioritize patients waiting for liver transplant. Metastatic Prostate Cancer Prognosis Calculator The metastatic prostate cancer prognosis calculator estimates the mortality and life expectancy associated with the prostate cancer diagnosis. MME Calculator The MME calculator computes the morphine milligram equivalents of popular opioid drugs. NAFLD Fibrosis Score Calculator The NAFLD fibrosis score calculator identifies liver fibrosis in patients with non-alcoholic fatty liver disease (NAFLD). Navy PRT Calculator Our Navy PRT calculator allows you to check your Physical Readiness Test score for the US navy. NEDOCS Calculator Use this NEDOCS calculator to evaluate the emergency department overcrowding. Newborn Hyperbilirubinemia Assessment Calculator Newborn hyperbilirubinemia assessment calculator is a tool for every pediatrician and concerned parent. Just fill in the few fields to see if the baby's bilirubin level is within the normal range and discover if they are at risk of developing a dangerously high level of bilirubin. NIH Stroke Scale Calculator The NIH stroke scale calculator helps to objectively assess the impairment caused by a stroke. Noise Pollution Calculator - Maximal Exposure Time Noise Pollution Calculator is a tool that helps you find out how long you can listen to a particular sound or noise volume without exposing your hearing to damage. Nuchal Translucency Calculator The nuchal translucency calculator will estimate the gestational age and genetic disorders risk of your pregnancy. Opioid Conversion Calculator The opioid conversion calculator tells you equivalent doses of analgesic drugs, such as morphine, fentanyl, or tramadol. Osteoporosis Risk Calculator Calculate your risk for osteoporosis using the osteoporosis risk calculator in no time! PECARN Calculator PECARN calculator for children estimates the risk of Traumatic Brain Injury and the need for performing a Computer Tomography (CT) scan. Pediatric Blood Pressure Calculator The pediatric blood pressure calculator allows you to compute the percentile of your child's blood pressure and check whether it's within the normal range. Pediatric Blood Transfusion Volume Calculator This pediatric blood transfusion volume calculator estimates the blood transfusion volume for pediatric use based on the patient's weight, hematocrit of the transfused blood, and the aimed increment of hemoglobin level. Pediatric Epinephrine Dose Calculator Pediatric epinephrine dose calculator helps you estimate the amount of epinephrine needed for IV, IM, SC, ET and Nebulizer administration. You can convert your results between mL and mg units. Peptide Calculator The peptide dosage calculator will tell you how far you need to pull the syringe to get the dose you need. PERC Calculator - Pulmonary Embolism Rule-Out Criteria The PERC calculator (pulmonary embolism rule out criteria) helps you make the right decisions when you suspect pulmonary embolism in your patient. Prescription Refill Calculator The prescription refill calculator will compute the needed days' supply and the date of your next refill. Progesterone to Estrogen Ratio Calculator The progesterone to estrogen ratio calculator estimates the value of a parameter used to assess hormone imbalance and converts progesterone and estradiol units. PSI Calculator PSI calculator is a simple tool for assessing the risk & mortality of Community-Acquired Pneumonia (CAP). Radiation Dose Calculator Using the radiation dose calculator, you can calculate how much radiation you are exposed to each year. Reopening Calculator – Coronavirus See how post-lockdown measures can affect the spread of an infectious disease, and help us all become safely immune. Revised Geneva Score Calculator for Pulmonary Embolism Calculate the probability of pulmonary embolism using the Revised Geneva Score calculator. Revised Trauma Score Calculator The revised trauma score calculator helps you determine the victim's health status in an emergency and the likelihood of his death. SAPS II Calculator: Simplified Acute Physiology II Score Calculator This SAPS II Calculator helps you to assess the mortality risk in a patient admitted to an Intensive Care Unit. SCORAD Calculator - SCORing Atopic Dermatitis The SCORing Atopic Dermatitis calculator (SCORAD calculator) helps you evaluate the severity of atopic dermatitis, based on clinical signs and subjective patient symptoms. Sepsis Calculator (Sepsis-3 Criteria) This sepsis calculator allows for earlier recognition and better management of patients with sepsis or those at risk of developing sepsis based on Sepsis-3 Consensus Criteria. Smoking Recovery Calculator Watch your body heal and see how much longer you'll live after you quit smoking! This smoking recovery calculator shows you the exact dates when the withdrawal syndrome is resolved, when your circulatory system recovers and when the risk of cancer decreases. Snap Score Calculator Use this snap score calculator to screen for attention deficit hyperactivity disorder (ADHD) in children aged 6 to 18 years old. Sobriety Calculator We created this sobriety calculator to help you determine how long you have been sober. Social Distancing Calculator - Coronavirus Explore the probability of controlling the outbreak with our social distancing calculator - COVID-19. Sperm Analysis Calculator The sperm analysis calculator allows you to quickly check the results of your semen analysis test. Steroid Conversion Calculator The steroid conversion calculator shows you equivalent doses of corticosteroids. Stillbirth Risk Calculator Stillbirth risk calculator estimates the stillbirth risk, based on a variety of factors. Testosterone to Estradiol Ratio Calculator This testosterone to estradiol ratio calculator estimates the proportion of the two hormones and converts their units between nmol/L, ng/dL, pg/mL, and pmol/L. TI-RADS Calculator The TI-RADS calculator is a simple system to assess thyroid nodules with an ultrasound device. Time Of Death Calculator The time of death calculator allows you to estimate the time that has passed between the death of a person and the body being found. TIMI Score Calculator for UA/NSTEMI The TIMI Score Calculator for UA/NSTEMI helps you to make a therapeutic decision in patients with unstable angina or non ST segment elevation myocardial infarction. TIMI Score for STEMI Calculator The TIMI Score for STEMI calculator helps you to determine, of the patients with myocardial infarction, which are at the highest risk of all-cause mortality in the following 30 days. Tinetti Calculator The Tinetti calculator is a professional tool used to assess the risk of falls, based on balance and gait in the elderly. tPA Calculator – Stroke Dosing The tPA calculator allows you to quickly find the correct dosage of alteplase for a stroke patient. Tramadol Dosage Calculator The tramadol dosage calculator informs you about the recommended dosage of tramadol for a patient of a given age and indication. Tylenol Overdose Calculator The Tylenol overdose calculator counts the dose of antidote for Tylenol poisoning and lets you estimate the drug's toxicity. Vaccine Queue Calculator for Australia The Vaccine Queue Calculator for Australia estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. Vaccine Queue Calculator for Canada The vaccine queue calculator for Canada estimates where you are in the queue to get your COVID vaccine based on your age, community, and job. Vaccine Queue Calculator for England The vaccine queue calculator for England estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. Vaccine Queue Calculator for India The vaccine queue calculator for India estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. Vaccine Queue Calculator for Ireland The vaccine queue calculator for Ireland estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. Vaccine Queue Calculator for Malaysia The vaccine queue calculator for Malaysia estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. Vaccine Queue Calculator for Northern Ireland The vaccine queue calculator for Northern Ireland estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. Vaccine Queue Calculator for Scotland The vaccine queue calculator for Scotland estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. Vaccine Queue Calculator for South Africa The vaccine queue calculator for South Africa estimates where you are in the queue to get your COVID vaccine based on your age, community, and job. Vaccine Queue Calculator for the Netherlands The vaccine queue calculator for the Netherlands estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. Vaccine Queue Calculator for the Philippines The Vaccine queue calculator for the Philippines estimates where you are in the queue to get your COVID vaccine based on your age, job, health condition, and indigency, and the government's vaccination rate. Vaccine Queue Calculator for the UK The vaccine queue calculator for the UK estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. Vaccine Queue Calculator for Wales The vaccine queue calculator for Wales estimates where you are in the queue to get your COVID vaccine based on your age, health, and job. VBAC Calculator (Vaginal Birth After Cesarean Section) VBAC calculator finds your chances for a successful vaginal birth after a cesarean section. VTE Risk Score Calculator in Pregnancy With this VTE risk score calculator in pregnancy, you can assess the risk of venous thromboembolism in pregnant and postpartum women. Warfarin Dosing Calculator The warfarin dosing calculator tells you how to alter the warfarin dosage to keep the INR in your desired range. Warsaw Method Calculator The Warsaw method calculator estimates the number of FPUs (fat-protein units) and the amount of insulin you need to deliver during the extended post-meal bolus. Weight Percentile Calculator This weight percentile calculator helps to assess the development of your child and check whether their weight gain is correct. 