Convert rads to gray
1 rad = 0.01 Gy — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.01Gy
As a fraction: 1/100
1 rad = 0.01 Gy
How to convert rads to gray
Multiply the number of rads by 0.01 to get gray.
The exact factor is 0.01 — as a fraction, 1/100.
Rad: The older CGS dose unit: 100 rad = 1 Gy.
Rad to Gray conversion table
| Rads (rad) | Gray (Gy) |
|---|---|
| 1 rad | 0.01 |
| 2 rad | 0.02 |
| 3 rad | 0.03 |
| 5 rad | 0.05 |
| 10 rad | 0.1 |
| 20 rad | 0.2 |
| 25 rad | 0.25 |
| 50 rad | 0.5 |
| 100 rad | 1 |
| 250 rad | 2.5 |
| 500 rad | 5 |
| 1000 rad | 10 |
Gray to Rad conversion table
| Gray (Gy) | Rads (rad) |
|---|---|
| 1 Gy | 100 |
| 2 Gy | 200 |
| 3 Gy | 300 |
| 5 Gy | 500 |
| 10 Gy | 1000 |
| 20 Gy | 2000 |
| 25 Gy | 2500 |
| 50 Gy | 5000 |
| 100 Gy | 10 000 |
| 250 Gy | 25 000 |
| 500 Gy | 50 000 |
| 1000 Gy | 100 000 |
Frequently asked
How many gray are in a rad?
One rad equals 0.01 gray (rad → Gy). That figure is exact, not rounded.
How do you convert rads to gray?
Multiply the number of rads by 0.01 to get gray.
What is 1 Gy in rads?
One gray is 100 rads.
What is 10 rad in Gy?
10 rad = 0.1 Gy.
What exactly is a rad?
The older CGS dose unit: 100 rad = 1 Gy.