Convert Coulombs per kilogram to Megaroentgens
Convert Coulombs per kilogram (C/kg) to Megaroentgens (MR) instantly and accurately.
Conversion Formula
MR = C/kg × 0.003875968992
About Coulombs per kilogram
The coulomb per kilogram (C/kg) is the SI derived unit of radiation exposure, equal to 1 coulomb of ion charge liberated per kilogram of dry air. It replaced the roentgen in SI. Calibration of clinical X-ray beams with free-air ionisation chambers and parallel-plate chambers yields results in C/kg. 1 C/kg ≈ 3876 R.
About Megaroentgens
The megaroentgen (MR) equals 258 C/kg. Used only in extreme radiation environments - nuclear detonation effects calculations, prompt gamma pulse environments, and legacy radiation hardness assurance for military electronics specify total ionising exposure in MR(air); calibrated flash X-ray simulators output pulse exposures in MR. 1 MR = 258 C/kg = 10⁶ R.
Quick Reference Table
| Coulombs per kilogram (C/kg) | Megaroentgens (MR) |
|---|---|
| 1 C/kg | 0.00387597 MR |
| 2 C/kg | 0.00775194 MR |
| 5 C/kg | 0.0193798 MR |
| 10 C/kg | 0.0387597 MR |
| 25 C/kg | 0.0968992 MR |
| 50 C/kg | 0.193798 MR |
| 100 C/kg | 0.387597 MR |