Convert Millicoulombs per kilogram to Microroentgens
Convert Millicoulombs per kilogram (mC/kg) to Microroentgens (µR) instantly and accurately.
Conversion Formula
µR = mC/kg × 3875968.992
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 Microroentgens
The microroentgen (µR) equals 2.58 × 10⁻¹⁰ C/kg. Standard unit for very low environmental gamma dose rates in legacy US instrumentation: airborne radiological surveys over background areas report µR/h; EPA environmental monitoring network stations historically logged µR/h for outdoor gamma levels. 1 µR = 2.58 × 10⁻¹⁰ C/kg.
Quick Reference Table
| Millicoulombs per kilogram (mC/kg) | Microroentgens (µR) |
|---|---|
| 1 mC/kg | 3875970 µR |
| 2 mC/kg | 7751940 µR |
| 5 mC/kg | 19379800 µR |
| 10 mC/kg | 38759700 µR |
| 25 mC/kg | 96899200 µR |
| 50 mC/kg | 193798000 µR |
| 100 mC/kg | 387597000 µR |