Convert Grays per hour to Grays per minute
Convert Grays per hour (Gy/h) to Grays per minute (Gy/min) instantly and accurately.
Conversion Formula
Gy/min = Gy/h × 0.01666666667
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 Grays per minute
The gray per minute (Gy/min) is the primary clinical radiotherapy machine output unit. Standard linac dose rates are 1-6 Gy/min at isocentre; stereotactic body radiotherapy (SBRT) uses up to 10 Gy/min; ¹⁹²Ir HDR brachytherapy sources are characterised in Gy/min at 1 cm reference distance. 1 Gy/min = 100 rad/min ≈ 1.67×10⁻² Gy/s.
Quick Reference Table
| Grays per hour (Gy/h) | Grays per minute (Gy/min) |
|---|---|
| 1 Gy/h | 0.0166667 Gy/min |
| 2 Gy/h | 0.0333333 Gy/min |
| 5 Gy/h | 0.0833333 Gy/min |
| 10 Gy/h | 0.166667 Gy/min |
| 25 Gy/h | 0.416667 Gy/min |
| 50 Gy/h | 0.833333 Gy/min |
| 100 Gy/h | 1.66667 Gy/min |