Convert Millicoulombs per kilogram to Megaroentgens
Convert Millicoulombs per kilogram (mC/kg) to Megaroentgens (MR) instantly and accurately.
Conversion Formula
MR = mC/kg × 3.875968992e-6
About Millicoulombs per kilogram
The millicoulomb per kilogram (mC/kg) equals 10⁻³ C/kg ≈ 3.88 R. Used in high-dose-rate X-ray beam calibration protocols (IAEA TRS-398, AAPM TG-51) where free-air chambers accumulate mC/kg of charge per irradiation; high-energy medical linac beams deliver calibration exposures measured in mC/kg. 1 mC/kg = 10⁻³ C/kg ≈ 3.88 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
| Millicoulombs per kilogram (mC/kg) | Megaroentgens (MR) |
|---|---|
| 1 mC/kg | 3.876 × 10-6 MR |
| 2 mC/kg | 7.752 × 10-6 MR |
| 5 mC/kg | 1.938 × 10-5 MR |
| 10 mC/kg | 3.876 × 10-5 MR |
| 25 mC/kg | 9.69 × 10-5 MR |
| 50 mC/kg | 0.000193798 MR |
| 100 mC/kg | 0.000387597 MR |