Radiation Converter Calculator
Convert supported radiation units while keeping unlike quantities separate. The form asks for a Value and a Unit. If you enter becquerel or curie, it reports activity in both Bq and Ci. If you enter sievert or rem, it reports equivalent dose in both Sv and rem. If you enter gray, it reports absorbed dose as Gy only.
Radiation units are easy to misuse because activity, absorbed dose, and biological effect are different measurements. For nearby physics conversions, see the energy converter or the frequency converter.
How to use this calculator
- Enter a nonnegative radiation value.
- Choose Bq, Ci, Gy, Sv, or rem.
- Read only the compatible results shown by the calculator.
- Do not infer safety from a unit conversion alone.
Conversion formula
| Quantity | Supported units | Factor |
|---|---|---|
| Activity | Bq and Ci | 1 Ci = 37,000,000,000 Bq |
| Absorbed dose | Gy | no cross-unit conversion in this form |
| Equivalent dose | Sv and rem | 1 rem = 0.01 Sv |
Worked example: 0.002 Ci × 37,000,000,000 = 74,000,000 Bq. For dose, 0.05 Sv ÷ 0.01 = 5 rem.
Radiation interpretation depends on isotope, exposure pathway, duration, shielding, and regulation, so use qualified safety or medical guidance for real exposures.