569 calculators

Finance calculators for borrowing, saving, tax, and investment decisions

Use these finance calculators to examine the numbers behind a money decision before you commit to it. The collection covers loan payments and payoff schedules, mortgage affordability, taxes and take-home pay, savings growth, retirement income, investment returns, pricing, margins, and other business measures.

A useful estimate depends on realistic assumptions. Match the interest rate to the correct compounding period, distinguish gross income from net income, include fees and taxes where the calculator requests them, and compare more than one scenario. Results are planning estimates; lender disclosures, tax rules, payroll records, and investment documents remain the authoritative sources.

Mortgage and real estate calculators

Start with House Affordability if you are deciding how much home you can reasonably buy, then use Mortgage Calculator to estimate the payment on a specific property. Mortgage Payoff is for an existing loan and extra-payment strategies, while Mortgage Amortization provides the full payment schedule. Choose Refinance to compare replacing a current mortgage, Rent vs. Buy for the ownership decision, Rental Property for operating cash flow, ARV for a renovation resale, and AFFO for REIT analysis.

Loan and debt calculators

Use Loan Calculator for a new general-purpose installment loan and Payment Calculator when the required installment is the main unknown. Repayment Calculator is better for testing changes to an existing payoff plan, while Amortization shows how each payment reduces principal. Auto Loan builds a vehicle deal from price, trade-in, taxes, and fees; Car Loan focuses on terms after the financed amount is known, while Bike EMI is for a motorcycle installment plan. For existing balances, use Balance Transfer for one promotional card offer or Debt Consolidation for several debts.

Tax and payroll calculators

Choose Income Tax for an annual tax estimate, Sales Tax or VAT for tax applied to a purchase, and Marriage Tax or Estate Tax for those specific filing or transfer questions. Salary Calculator converts gross pay between time periods; Take-Home Paycheck estimates deductions from salaried earnings, while Hourly Paycheck is designed for regular hours and overtime.

General investment calculators

Use Investment Calculator or Savings Calculator to project growth with contributions, depending on whether you are modeling market returns or a deposit account. APY compares the effective annual return of deposit products, while Simple Interest and Compound Interest isolate the interest method. Appreciation models an asset rising in value; Present Value and Future Value move a known amount through time. Retirement Calculator is broad, while 401(k), IRA, Roth IRA, pension, Social Security, RMD, and annuity tools answer account-specific questions.

Equity investment calculators

Choose Stock Calculator for profit or loss on a share trade, Beta Stock for market-relative volatility, and Black-Scholes for theoretical option value. Mutual Fund Calculator projects long-term fund growth after contributions and expenses. ROI measures one overall gain, IRR evaluates timed cash flows, and Average Return summarizes performance across periods. Margin Calculator is for profit margin or markup on a sale rather than investment performance.

Debt investment calculators

Use Bond Calculator for a broad price-and-yield analysis. Choose Bond Price when yield is known and price is unknown, or Bond Yield when price is known and return is unknown. CD Calculator is for a bank deposit with a stated APY and fixed term, not a tradable security. Basis Point Calculator only converts rate changes between financial notation and percentages.

Personal budgeting and income calculators

Use Annual Income to convert a pay rate into yearly gross income, then choose a budgeting framework if you want allocation guidance. The 50/30/20 rule separates needs, wants, and savings; 70/20/10 uses a broader living-cost allocation; 3x Rent checks a common landlord income threshold. APC is an economics measure of consumption share and is not a household budgeting method.

Business planning calculators

Use Budget Calculator to organize recurring income and expenses, Commission Calculator for sales compensation, ADR for lodging revenue per occupied room, and Attrition Rate for employee turnover. Average Fixed Cost allocates overhead per unit; Average Variable Cost tracks production-sensitive cost per unit. Depreciation allocates an asset's cost over time, while Payback Period asks how quickly an investment recovers its initial outlay.

Retirement and education savings calculators

Choose the calculator tied to the account or goal you actually use. A 403(b) models a nonprofit or public-sector workplace plan, a 529 focuses on education costs, and pension or retirement-account tools address retirement income. Use a general Savings or Investment Calculator only when tax rules, employer matching, and account-specific limits are not part of the decision.

Savings goals and household financial planning

Use a savings-goal or sinking-fund tool when you know the amount and deadline, an emergency-fund tool when planning a cash reserve, and a withdrawal tool when drawing down existing savings. Net-worth tools measure your current position, while millionaire, wedding, sabbatical, and dream-goal calculators turn a specific life objective into a contribution plan.

Mortgage, property, and housing analysis calculators

Use affordability and rent-rule tools before selecting a property, payment tools after a price and loan are known, and payoff or refinance tools for debt you already hold. Cap rate and rental metrics evaluate operating income, ARV evaluates a renovation resale, and commercial lease tools address business occupancy rather than homeownership.

Credit cards, consumer loans, and banking calculators

Choose a payment or payoff tool when managing one existing balance, a consolidation or balance-transfer tool when replacing debt, and an affordability or EMI tool before financing a purchase. Banking tools such as APY, CD, deposit, and savings calculators evaluate money held on account rather than money borrowed.

Tax, payroll, and employment income calculators

Use payroll and salary tools to convert gross earnings or estimate a paycheck, and tax tools to estimate a specific tax base, filing adjustment, or credit. State, country, and policy-specific tools should be used only when their jurisdiction and tax-year assumptions match your case; otherwise choose the general Income Tax calculator.

Stocks, funds, options, and portfolio calculators

Use trade calculators for a specific purchase and sale, return calculators for performance over time, and portfolio tools for risk or allocation across holdings. Beta and CAPM compare market risk, Black-Scholes and option tools value derivatives, while mutual-fund and ETF tools model pooled investments and their costs.

Bonds, yields, and fixed-income calculators

Choose Bond Price when yield is known, Bond Yield when market price is known, and YTM when the hold-to-maturity return is the question. Current yield considers coupon income relative to price but ignores maturity gains or losses; duration and convexity tools measure sensitivity to interest-rate changes rather than expected income.

Business valuation and corporate finance calculators

Use valuation tools when estimating what a company or project is worth, cost-of-capital tools when selecting a discount or required return, and solvency or liquidity ratios when assessing financial health. Altman Z-Score is for bankruptcy-risk screening; cash-flow and coverage ratios answer narrower questions about debt capacity and operating resilience.

Accounting, profitability, and unit economics calculators

Use accounting-profit and margin tools to measure earnings, cost-per-unit tools to understand production economics, and break-even or contribution-margin tools to determine the volume needed to cover costs. Reconciliation and receivables tools diagnose bookkeeping or cash-collection issues rather than product profitability.

Pricing, professional services, and purchasing calculators

Use bill-rate, consulting-fee, and billable-hours tools to set service pricing from time and overhead. Discount, cashback, and shopping tools evaluate a purchase price, while build-versus-buy and outsource comparisons evaluate whether owning an asset or capability is cheaper over time.

Workforce and operations calculators

Use attrition and churn measures for people or customers leaving, absence and Bradford tools for attendance patterns, and productivity or capacity tools for operational output. Burn rate measures cash consumption, while Agile burndown tracks remaining project work; the similar names describe different management problems.

Marketing, sales, and customer metrics calculators

Choose conversion, CPC, CPM, or CPA tools for campaign efficiency at a particular funnel stage. Customer lifetime value estimates long-term customer economics, while churn and retention explain how quickly that value is lost. Bounce rate measures website engagement and should not be treated as a sales conversion measure.

Insurance and asset-value calculators

Use actual cash value when an insurer depreciates replacement cost, insurance-ratio tools when evaluating an insurer's operations, and coverage calculators when estimating protection needs. These tools answer insurance-specific valuation questions; use Depreciation Calculator for accounting book value instead.

Economics and purchasing-power calculators

Use inflation and buying-power tools to compare money across time, propensity and surplus tools for economic behavior, and production or comparative-advantage tools for economic output and trade. These are analytical models, not household budgets or investment-return forecasts.

Foreign exchange, crypto, and alternative investments

Use currency and carry-trade tools for exchange-rate positions, crypto tools for digital-asset transactions or returns, and alternative-investment tools for specialized assets. These carry different fee, volatility, liquidity, and tax assumptions from ordinary stock or savings calculators.