Convert Microroentgens to Coulombs per kilogram
Convert Microroentgens (µR) to Coulombs per kilogram (C/kg) instantly and accurately.
Conversion Formula
C/kg = µR × 2.580000000e-10
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 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
| Microroentgens (µR) | Coulombs per kilogram (C/kg) |
|---|---|
| 1 µR | 2.58 × 10-10 C/kg |
| 2 µR | 5.16 × 10-10 C/kg |
| 5 µR | 1.29 × 10-9 C/kg |
| 10 µR | 2.58 × 10-9 C/kg |
| 25 µR | 6.45 × 10-9 C/kg |
| 50 µR | 1.29 × 10-8 C/kg |
| 100 µR | 2.58 × 10-8 C/kg |