Convert Grays per hour to Millisieverts per hour
Convert Grays per hour (Gy/h) to Millisieverts per hour (mSv/h) instantly and accurately.
Conversion Formula
mSv/h = Gy/h × 1000
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.
About Millisieverts per hour
The millisievert per hour (mSv/h) equals 1e-3 Sv/h = 1e-3 Gy/h for photon radiation. Standard field survey unit in radiation protection: nuclear power plant boundary limits are stated in mSv/h; NRC and IAEA emergency alert levels for the public begin at 1 mSv/h; portable radiation survey instruments have a dedicated mSv/h range. 1 mSv/h = 1 mGy/h for photons.
Quick Reference Table
| Grays per hour (Gy/h) | Millisieverts per hour (mSv/h) |
|---|---|
| 1 Gy/h | 1000 mSv/h |
| 2 Gy/h | 2000 mSv/h |
| 5 Gy/h | 5000 mSv/h |
| 10 Gy/h | 10000 mSv/h |
| 25 Gy/h | 25000 mSv/h |
| 50 Gy/h | 50000 mSv/h |
| 100 Gy/h | 100000 mSv/h |