Annual Radiation Dose Calculator
Health & FitnessEstimate total annual ionizing radiation exposure from natural background, lifestyle factors, and diagnostic imaging, using published per-source dose factors.
Estimated Total Annual Dose
Estimated total annual dose from natural background plus the sources entered above.
Estimated Total Annual Dose
2.87
The same total expressed in millisieverts (100 mrem = 1 mSv).
Percent of Annual Occupational Limit
5.7
This total as a percentage of the 50 mSv/year occupational radiation exposure limit.
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Frequently Asked Questions
What counts as natural background radiation?
Everyone is exposed to roughly 287 mrem per year from cosmic rays, the earth itself, and naturally occurring radiation inside the body, before any of the sources above are added.
Does this include every possible radiation source?
No, this covers the most significant common contributors: natural background, smoking, air travel, housing material, and common diagnostic imaging. Other sources like mammography, radioactive iodine treatment, or specific occupational exposures are not included here, and per-procedure imaging comparisons are covered by the separate Medical Radiation Dose Calculator.
Is this a substitute for medical advice?
This is an educational estimate, not a personal dosimetry reading. Speak with a radiology or occupational health professional for an individualized assessment.
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