Convert Nanograys to Rads
Convert Nanograys (nGy) to Rads (rad) instantly and accurately.
Conversion Formula
rad = nGy × 1.000000000e-7
About Nanograys
The nanogray (nGy) equals 10⁻⁹ Gy. Background cosmic-ray dose rate at sea level is ~0.03-0.05 nGy/s; environmental low-dose-rate studies of DNA damage in cultured cells use nGy doses delivered over days; regulatory derived investigation levels for some radionuclides in food correspond to organ doses in nGy. 1 nGy = 10⁻⁹ Gy = 10⁻³ µGy.
About Rads
The rad (rad) equals exactly 0.01 Gy = 100 erg/g. The pre-SI unit of absorbed dose, defined by the ICRU in 1953, still widely used in the US in radiation therapy (cGy = rad numerically), radiation biology, and NRC regulations. Whole-body 50% lethal dose (LD50) for humans ~350-450 rad. 1 rad = 0.01 Gy = 1 cGy.
Quick Reference Table
| Nanograys (nGy) | Rads (rad) |
|---|---|
| 1 nGy | 1 × 10-7 rad |
| 2 nGy | 2 × 10-7 rad |
| 5 nGy | 5 × 10-7 rad |
| 10 nGy | 1 × 10-6 rad |
| 25 nGy | 2.5 × 10-6 rad |
| 50 nGy | 5 × 10-6 rad |
| 100 nGy | 1 × 10-5 rad |