Convert Microroentgens to Milliroentgens
Convert Microroentgens (µR) to Milliroentgens (mR) instantly and accurately.
Conversion Formula
mR = µR × 0.001
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 Milliroentgens
The milliroentgen (mR) equals 2.58 × 10⁻⁷ C/kg. Standard unit in US health physics for area gamma surveys: personal dosimeters and Geiger counters in medical and industrial radiography settings display mR/h; NRC licence conditions often specify dose-rate limits in mR/h at facility boundaries. 1 mR = 2.58 × 10⁻⁷ C/kg.
Quick Reference Table
| Microroentgens (µR) | Milliroentgens (mR) |
|---|---|
| 1 µR | 0.001 mR |
| 2 µR | 0.002 mR |
| 5 µR | 0.005 mR |
| 10 µR | 0.01 mR |
| 25 µR | 0.025 mR |
| 50 µR | 0.05 mR |
| 100 µR | 0.1 mR |