Flight Radiation Calculator

Adjust the calculator values below

Estimated total dose 25 µSv
Total dose in mSv 0.025 mSv
Total dose in mrem 2.5 mrem
Estimated dose per flight 25 µSv
Total airborne time 5 hours
Entered average dose rate 5 µSv/h
Sensitivity range 18.75 to 31.25 µSv
Comparison dose 35 µSv
Share of comparison dose 71.4286%
Calculation method Dose rate × airborne time × flights
25 µSv
Estimated effective dose 5 µSv/h × 5 hours × 1 flight; entered-rate estimate, not a route-dose model
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Flight Radiation Calculator

Use this flight radiation with average effective dose rate, airborne time per flight, and number of similar flights to get fast results, understand the...

How this entered-rate estimate is calculated

Effective dose per flight equals the entered average effective-dose rate multiplied by airborne time. Total effective dose multiplies that result by the number of similar flights. The calculator converts micro-sieverts, milli-sieverts, and millirem before calculating; 1 mSv equals 1,000 µSv and 100 mrem.

Real flight dose depends on the route and conditions

Cosmic-radiation exposure generally varies with flight duration, altitude, latitude, route, and solar conditions. The entered dose rate must come from a suitable estimate or measurement. For route-specific work, use an aviation radiation model such as the FAA CARI program rather than assuming one universal hourly rate.

Use the result as exposure arithmetic, not medical advice

The sensitivity range only applies the selected percentage around the entered rate. It does not model climb and descent, changing altitude or latitude, aircraft trajectory, solar-particle events, pregnancy-specific guidance, cumulative occupational records, or individual health risk. Aircrew and anyone making health or work decisions should use official exposure tools and qualified occupational-health guidance.

Frequently asked questions

Common questions about effective dose rate, airborne time, dose units, route dependence, sensitivity ranges, comparisons, and estimation limitations.

How is the flight-radiation estimate calculated?

Multiply the entered average effective-dose rate by airborne time per flight and by the number of similar flights. All dose-rate and dose units are converted internally before calculating.

Which dose-rate units can I use?

Enter µSv/h, mSv/h, or mrem/h. One mSv equals 1,000 µSv and 100 mrem, so one mrem equals 10 µSv.

Does the calculator determine dose from my airports or route?

No. You must enter an estimated average dose rate. Route-specific estimates should use an aviation radiation model such as FAA CARI because altitude, latitude, trajectory, and solar conditions matter.

What is the dose-rate variation allowance?

It applies a simple plus-or-minus percentage to the entered rate and shows a sensitivity range. It is not a statistical confidence interval and does not model route or solar-event uncertainty.

Why is 35 µSv the default comparison dose?

CDC uses about 0.035 mSv, or 35 µSv, as an example for a U.S. east-coast to west-coast flight. It is only a comparison; real flights vary.

Can this result be used for medical or occupational decisions?

Not by itself. It is exposure arithmetic based on the entered rate. Aircrew, pregnant travelers, and anyone tracking occupational exposure should use official route estimates and qualified health or workplace guidance.