About this radiation exposure converter
Convert radiation exposure units for radiology references, survey readings, shielding notes, and health physics calculations involving X-ray or gamma-ray ionization in air.
Exposure is not the same as absorbed dose. Roentgen and C/kg quantify air ionization, while gray and sievert quantify energy absorption and biological weighting.
Units covered
Traditional exposure
Roentgen, milliroentgen, and microroentgen for practical field readings.
SI units
C/kg, mC/kg, and uC/kg for standardized exposure reporting.
Exact relation
Uses the defined 1 R = 0.000258 C/kg conversion.
How to use it
- Enter the exposure value from your detector, table, or documentation.
- Select the current and target exposure units.
- Use radiation dose tools when converting to gray, rad, sievert, or rem concepts.