Gray to rad
Type a value in Gy to get it in rad instantly.
100rad
That's about the same as the radiation sickness threshold. That is about 416.7× a year of natural background radiation.
What it means
How much is that?
Information only. Gray measures energy absorbed; sievert weights it for biological harm, and for x-rays the two are numerically equal.
The math
How to convert Gy to rad
To convert gray to rad, multiply by 100.
Example: 1 Gy × 100 = 100 rad.
In the other direction, 1 rad = 0.01 Gy.
Every unit
Your dose in every unit
Tables
Gy to rad conversion table
| Gy | rad |
|---|---|
| 0.01 Gy | 1 rad |
| 0.05 Gy | 5 rad |
| 0.1 Gy | 10 rad |
| 0.5 Gy | 50 rad |
| 1 Gy | 100 rad |
| 2 Gy | 200 rad |
| 5 Gy | 500 rad |
| 10 Gy | 1,000 rad |
| 20 Gy | 2,000 rad |
| 50 Gy | 5,000 rad |
| 100 Gy | 10,000 rad |
| 500 Gy | 50,000 rad |
rad to Gy conversion table
| rad | Gy |
|---|---|
| 0.01 rad | 0.0001 Gy |
| 0.05 rad | 0.0005 Gy |
| 0.1 rad | 0.001 Gy |
| 0.5 rad | 0.005 Gy |
| 1 rad | 0.01 Gy |
| 2 rad | 0.02 Gy |
| 5 rad | 0.05 Gy |
| 10 rad | 0.1 Gy |
| 20 rad | 0.2 Gy |
| 50 rad | 0.5 Gy |
| 100 rad | 1 Gy |
| 500 rad | 5 Gy |
Quick answers
Quick answers
- How many rad is 1 Gy?
- 1 Gy is 100 rad.
- How many rad is 10 Gy?
- 10 Gy is 1,000 rad.
The units
About these units
Gray (Gy)
The SI unit of absorbed energy: one joule per kilogram, before any weighting for harm.
Rad (rad)
The older absorbed-dose unit, one hundredth of a gray.
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