Convert Rads to Grays
1 rad = 0.01 grays. Multiply the number of rads by 0.01.
Result
1 rad = 0.01 Gy
Multiply the number of rads by 0.01.
For information only. Confirm dose and exposure values with a qualified radiation safety professional. About accuracy
Popular radiation dose conversions
Rads to Grays table
| Rads | Grays |
|---|---|
| 1 rad | 0.01 Gy |
| 2 rad | 0.02 Gy |
| 3 rad | 0.03 Gy |
| 4 rad | 0.04 Gy |
| 5 rad | 0.05 Gy |
| 10 rad | 0.1 Gy |
| 20 rad | 0.2 Gy |
| 25 rad | 0.25 Gy |
| 50 rad | 0.5 Gy |
| 100 rad | 1 Gy |
| 500 rad | 5 Gy |
| 1000 rad | 10 Gy |
About these units
The rad (rad) is a specialist or regional unit of radiation dose, equal to 0.01 sieverts.
The gray (Gy) is an SI base or derived unit of radiation dose, equal to 1 sieverts.
Going the other way, 1 gray = 100 rads. Absorbed dose is measured in grays (or rads); equivalent dose, which accounts for biological effect, is measured in sieverts (or rems). For X-rays, gamma and beta radiation the weighting factor is 1, so one gray equals one sievert — the assumption used in this converter.
Frequently asked
- How many grays are in a rad?
- 1 rad = 0.01 grays.
- How do you convert rads to grays?
- Multiply the number of rads by 0.01.
- What is 10 rad in Gy?
- 10 rad = 0.1 Gy.