Radiation Conversion Calculator

The main radiation units are: 1) Sievert (Sv) for dose equivalent, 2) Gray (Gy) for absorbed dose, 3) Rem for dose equivalent (US), 4) Rad for absorbed dose (US), 5) Becquerel (Bq) for activity, and 6) Roentgen (R) for exposure. Each unit measures different aspects of radiation.

1 microsievert (µSv) equals: 1) 0.001 millisievert (mSv), 2) 0.0001 rem, 3) 0.1 microrem, 4) 0.000001 sievert (Sv). For context, a chest X-ray typically delivers about 100 microsieverts of radiation dose.

To convert rem to sievert: multiply rem by 0.01 (1 rem = 0.01 Sv = 10 mSv). For example: 5 rem = 0.05 Sv = 50 mSv. This conversion is essential for comparing US radiation measurements with international standards.

Absorbed dose (measured in gray or rad) is the energy deposited per unit mass of material. Equivalent dose (measured in sievert or rem) accounts for the biological effectiveness of different radiation types by multiplying the absorbed dose by a radiation weighting factor. This factor is 1 for x-rays and gamma rays, but can be up to 20 for alpha particles.