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
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1 rad = 0.01 Gy
Show this value in all 8 absorbed dose units
- Kilogray kGy 0.000 01
- Gray Gy 0.01
- Milligray mGy 10
- Microgray µGy 10 000
- Rads rad 1
- Millirads mrad 1000
- Joule per kilograms J/kg 0.01
- Erg per grams erg/g 100
Every row is Rad converted through the gray, in exact rational arithmetic.
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.