Convert Rads per minute to Grays per hour
Convert Rads per minute (rad/min) to Grays per hour (Gy/h) instantly and accurately.
Conversion Formula
Gy/h = rad/min × 0.6
About Rads per minute
The rad per minute (rad/min) equals 0.01 Gy/min ≈ 1.67×10⁻⁴ Gy/s. Historically the primary US radiation therapy output unit: cobalt-60 and early linac machines from the 1960s-1980s are documented in rad/min at isocentre; radiation processing conveyor throughput calculations and legacy NIST linac calibrations use rad/min. 1 rad/min = 0.01 Gy/min = 1 cGy/min.
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
| Rads per minute (rad/min) | Grays per hour (Gy/h) |
|---|---|
| 1 rad/min | 0.6 Gy/h |
| 2 rad/min | 1.2 Gy/h |
| 5 rad/min | 3 Gy/h |
| 10 rad/min | 6 Gy/h |
| 25 rad/min | 15 Gy/h |
| 50 rad/min | 30 Gy/h |
| 100 rad/min | 60 Gy/h |