Convert Nanograys per hour to Grays per minute
Convert Nanograys per hour (nGy/h) to Grays per minute (Gy/min) instantly and accurately.
Conversion Formula
Gy/min = nGy/h × 1.666666667e-11
About Nanograys per hour
The nanogray per hour (nGy/h) equals 1e-9 Gy/h ≈ 2.78×10⁻¹³ Gy/s. Natural background cosmic-ray dose rates at sea level are 30-50 nGy/h; at aviation cruising altitude they rise to 3000-6000 nGy/h. IAEA environmental surveillance networks and national monitoring stations report ambient gamma dose rates in nGy/h. 1 nGy/h = 1e-9 Gy/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
| Nanograys per hour (nGy/h) | Grays per minute (Gy/min) |
|---|---|
| 1 nGy/h | 1.667 × 10-11 Gy/min |
| 2 nGy/h | 3.333 × 10-11 Gy/min |
| 5 nGy/h | 8.333 × 10-11 Gy/min |
| 10 nGy/h | 1.667 × 10-10 Gy/min |
| 25 nGy/h | 4.167 × 10-10 Gy/min |
| 50 nGy/h | 8.333 × 10-10 Gy/min |
| 100 nGy/h | 1.667 × 10-9 Gy/min |