Convert Rads per hour to Grays per second
Convert Rads per hour (rad/h) to Grays per second (Gy/s) instantly and accurately.
Conversion Formula
Gy/s = rad/h × 2.777777778e-6
About Rads per hour
The rad per hour (rad/h) equals 0.01 Gy/h ≈ 2.78×10⁻⁶ Gy/s. Standard unit on US emergency dosimetry instruments and civil defense survey meters; Chernobyl sarcophagus contact dose rates were hundreds of rad/h; criticality accident dosimetry and NRC incident reports continue to evaluate dose rates in rad/h. 1 rad/h = 0.01 Gy/h = 10 mGy/h.
About Grays per second
The gray per second (Gy/s) is the SI coherent unit of absorbed dose rate, equal to 1 joule per kilogram per second, dimensionally equivalent to W/kg or m²/s³. Used in HDR brachytherapy source strength, FLASH radiotherapy research (>40 Gy/s for normal tissue sparing), and particle accelerator beam-loss dosimetry. 1 Gy/s = 60 Gy/min = 3600 Gy/h = 100 rad/s.
Quick Reference Table
| Rads per hour (rad/h) | Grays per second (Gy/s) |
|---|---|
| 1 rad/h | 2.778 × 10-6 Gy/s |
| 2 rad/h | 5.556 × 10-6 Gy/s |
| 5 rad/h | 1.389 × 10-5 Gy/s |
| 10 rad/h | 2.778 × 10-5 Gy/s |
| 25 rad/h | 6.944 × 10-5 Gy/s |
| 50 rad/h | 0.000138889 Gy/s |
| 100 rad/h | 0.000277778 Gy/s |