Table Of Contents
Gray to rad Conversion
1 gray (Gy) is equal to 100 rad (rad).
1 Gy = 100 rad
or
1 rad = 0.01 Gy
Formula
To convert a absorbed dose from gray (Gy) to rad (rad), multiply the absorbed dose in gray by 100
a(rad) = a(Gy) × 100
Examples:
Convert 250 gray to rad:
a(rad) = 250Gy × 100 = 25000 rad
Conversion table
| 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 |
| 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 |
Frequently asked questions
How do I convert gray to rad?
Multiply the value in gray by 100 to get the result in rad. For example, 5 Gy × 100 = 500 rad.
How many rad are in 1 gray?
1 gray (Gy) is equal to 100 rad (rad).
How do I convert rad back to gray?
Use the inverse operation: divide the value in rad by 100 to get the result in gray.
How accurate is the gray to rad 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:
