Convert Microroentgens to Millicoulombs per kilogram
Convert Microroentgens (µR) to Millicoulombs per kilogram (mC/kg) instantly and accurately.
Conversion Formula
mC/kg = µR × 2.580000000e-7
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.
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.
Quick Reference Table
| Microroentgens (µR) | Millicoulombs per kilogram (mC/kg) |
|---|---|
| 1 µR | 2.58 × 10-7 mC/kg |
| 2 µR | 5.16 × 10-7 mC/kg |
| 5 µR | 1.29 × 10-6 mC/kg |
| 10 µR | 2.58 × 10-6 mC/kg |
| 25 µR | 6.45 × 10-6 mC/kg |
| 50 µR | 1.29 × 10-5 mC/kg |
| 100 µR | 2.58 × 10-5 mC/kg |