Convert Nanograys per hour to Millirads per hour
Convert Nanograys per hour (nGy/h) to Millirads per hour (mrad/h) instantly and accurately.
Conversion Formula
mrad/h = nGy/h × 0.0001
About Nanograys per hour
The nanogray per hour (nGy/h) equals 1e-9 Gy/h ≈ 2.78×10⁻¹³ Gy/s. Natural background cosmic-ray dose rates at sea level are 30-50 nGy/h; at aviation cruising altitude they rise to 3000-6000 nGy/h. IAEA environmental surveillance networks and national monitoring stations report ambient gamma dose rates in nGy/h. 1 nGy/h = 1e-9 Gy/h.
About Millirads per hour
The millirad per hour (mrad/h) equals 1e-5 Gy/h = 10 µGy/h. Legacy US radiation protection unit used by area monitors and Geiger counters calibrated before SI adoption; EPA environmental surveillance stations report in mrad/h alongside µGy/h; NRC licence boundary dose-rate surveys often cite mrad/h. 1 mrad/h = 1e-5 Gy/h = 10 µGy/h.
Quick Reference Table
| Nanograys per hour (nGy/h) | Millirads per hour (mrad/h) |
|---|---|
| 1 nGy/h | 0.0001 mrad/h |
| 2 nGy/h | 0.0002 mrad/h |
| 5 nGy/h | 0.0005 mrad/h |
| 10 nGy/h | 0.001 mrad/h |
| 25 nGy/h | 0.0025 mrad/h |
| 50 nGy/h | 0.005 mrad/h |
| 100 nGy/h | 0.01 mrad/h |