Rad to Gray Converter
Convert rad to Gy instantly. 1 rad = 0.01 Gy.
Conversion Formula
Gy = rad × 0.01
Example
25 rad × 0.01 = 0.25 Gy
Convert the other way: Gray to Rad →
Rad to Gray Conversion Table
| Rad (rad) | Gray (Gy) |
|---|---|
| 0.1 | 0.001 |
| 0.5 | 0.005 |
| 1 | 0.01 |
| 2 | 0.02 |
| 5 | 0.05 |
| 10 | 0.1 |
| 20 | 0.2 |
| 25 | 0.25 |
| 50 | 0.5 |
| 100 | 1 |
| 500 | 5 |
| 1,000 | 10 |
About These Units
- Rad (rad)
- Radiation absorbed dose, the older unit of absorbed dose, exactly 0.01 Gy or 100 ergs per gram. It still appears in American medical physics and nuclear records, and it is unrelated to the radian.
- Gray (Gy)
- The SI derived unit of absorbed dose, one joule of ionizing radiation energy per kilogram of matter. Radiotherapy plans, radiation biology, and material irradiation work are all specified in grays.
Frequently Asked Questions
How many Gy are in 1 rad?
1 rad equals 0.01 Gy.
How do I convert Rad to Gray?
Multiply your Rad value by 0.01. For example, 25 rad × 0.01 = 0.25 Gy.
How many rad are in 1 Gy?
1 Gy equals 100 rad.