Table Of Contents
Rad to gray Conversion
1 rad (rad) is equal to 0.01 gray (Gy).
1 rad = 0.01 Gy
or
1 Gy = 100 rad
Formula
To convert a absorbed dose from rad (rad) to gray (Gy), divide the absorbed dose in rad by 100
a(Gy) = a(rad) / 100
Examples:
Convert 250 rad to gray:
a(Gy) = 250rad / 100 = 2.5 Gy
Conversion table
| Rad (rad) | Gray (Gy) |
|---|---|
| 1 rad | 0.01 Gy |
| 2 rad | 0.02 Gy |
| 3 rad | 0.03 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 |
| 250 rad | 2.5 Gy |
| 500 rad | 5 Gy |
| 1000 rad | 10 Gy |
| Gray (Gy) | Rad (rad) |
|---|---|
| 1 Gy | 100 rad |
| 2 Gy | 200 rad |
| 3 Gy | 300 rad |
| 5 Gy | 500 rad |
| 10 Gy | 1000 rad |
| 20 Gy | 2000 rad |
| 25 Gy | 2500 rad |
| 50 Gy | 5000 rad |
| 100 Gy | 10000 rad |
| 250 Gy | 25000 rad |
| 500 Gy | 50000 rad |
| 1000 Gy | 100000 rad |
Frequently asked questions
How do I convert rad to gray?
Divide the value in rad by 100 to get the result in gray. For example, 5 rad ÷ 100 = 0.05 Gy.
How many gray are in 1 rad?
1 rad (rad) is equal to 0.01 gray (Gy).
How do I convert gray back to rad?
Use the inverse operation: multiply the value in gray by 100 to get the result in rad.
How accurate is the rad to gray conversion?
The converter multiplies by the conversion factor 100 and rounds the result to 9 decimal places by default. You can increase or reduce the precision with the digits option on this page.
Sources
Conversion factors are based on internationally recognised standards:
