Convert Millicoulombs per kilogram to Coulombs per kilogram
Convert Millicoulombs per kilogram (mC/kg) to Coulombs per kilogram (C/kg) instantly and accurately.
Conversion Formula
C/kg = mC/kg × 0.001
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 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.
Quick Reference Table
| Millicoulombs per kilogram (mC/kg) | Coulombs per kilogram (C/kg) |
|---|---|
| 1 mC/kg | 0.001 C/kg |
| 2 mC/kg | 0.002 C/kg |
| 5 mC/kg | 0.005 C/kg |
| 10 mC/kg | 0.01 C/kg |
| 25 mC/kg | 0.025 C/kg |
| 50 mC/kg | 0.05 C/kg |
| 100 mC/kg | 0.1 C/kg |