Convert Millirads per hour to Grays per hour
Convert Millirads per hour (mrad/h) to Grays per hour (Gy/h) instantly and accurately.
Conversion Formula
Gy/h = mrad/h × 1.000000000e-5
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.
About Grays per hour
The gray per hour (Gy/h) equals 1/3600 Gy/s ≈ 2.78×10⁻⁴ Gy/s. Used in radiation processing and source strength reporting: ¹³⁷Cs irradiator calibrations are expressed in Gy/h at a reference distance; IAEA food irradiation standards cite Gy/h for conveyor output; radiobiological experiments for cancer cell survival curves use Gy/h. 1 Gy/h = 100 rad/h = 1000 mGy/h.
Quick Reference Table
| Millirads per hour (mrad/h) | Grays per hour (Gy/h) |
|---|---|
| 1 mrad/h | 1 × 10-5 Gy/h |
| 2 mrad/h | 2 × 10-5 Gy/h |
| 5 mrad/h | 5 × 10-5 Gy/h |
| 10 mrad/h | 0.0001 Gy/h |
| 25 mrad/h | 0.00025 Gy/h |
| 50 mrad/h | 0.0005 Gy/h |
| 100 mrad/h | 0.001 Gy/h |