The U.S. Nuclear Regulatory Commission is in the process of rescinding or revising guidance and policies posted on this webpage in accordance with Executive Order 14151 Ending Radical and Wasteful Government DEI Programs and Preferencing, and Executive Order 14168 Defending Women From Gender Ideology Extremism and Restoring Biological Truth to the Federal Government. In the interim, any previously issued diversity, equity, inclusion, or gender-related guidance on this webpage should be considered rescinded that is inconsistent with these Executive Orders.
We live in a radioactive world, and radiation has always been all around us as a part of our natural environment. The unit used in measuring our radiation dose is the millirem (mrem). The annual average dose per person from all natural and man-made sources is about 620 mrems. Consequently, to protect health and safety, the U.S. Nuclear Regulatory Commission (NRC) has established standards that allow exposures of up to 5,000 mrem per year for those who work with and around radioactive material, and 100 mrem per year for members of the public (in addition to the radiation we receive from natural background sources).
Use this page to calculate your personal annual average dose.*
Select from the following if you . . .
*The reduction in life expectancy from a dose of 1 mrem is about 1.2 minutes. This is equivalent to the reduction in life expectancy from crossing the street three times, taking three puffs on a cigarette, or consuming 10 extra calories (for a person who is overweight).
**This is the annual dose average.
***The value is actually less than 1.
NOTE: Some of the radiation sources listed in this chart result in an exposure to only part of the body. For example, false teeth result in a radiation dose to the mouth. The annual dose numbers given here represent the "effective dose" to the whole body.
Your Total Dose: mrem
Page Last Reviewed/Updated Thursday, May 13, 2021