Convert rad to cGy
Type the number of rads that you wish to convert to centigrays.
How to Convert Rads to Centigrays
The rad and centigray are both units of radiation dose. By definition, 1 rad equals exactly 1 centigrays. This means to convert rads to centigrays, you multiply by 1.
Formula
Step-by-Step Example
Convert 5 rad to centigrays:
We need to convert rads to centigrays
Since 1 rad = 1 cGy, multiply by 1
5 × 1 = 5
5 rad = 5 cGy
Rad to Centigray Conversion Table
Quick reference table for common rad to centigray conversions. Click any value for detailed calculation.
| Rads (rad) | Centigrays (cGy) |
|---|---|
| 1 rad | 1 cGy |
| 2 rad | 2 cGy |
| 5 rad | 5 cGy |
| 10 rad | 10 cGy |
| 15 rad | 15 cGy |
| 20 rad | 20 cGy |
| 25 rad | 25 cGy |
| 50 rad | 50 cGy |
| 100 rad | 100 cGy |
About These Units
Rad (rad)
The rad (Radiation Absorbed Dose) is the traditional unit of absorbed dose. One gray = 100 rads exactly. One rad = 100 ergs/gram = 0.01 J/kg. Still used in US medical and nuclear industries. One rad = one centigray = one rem for gamma/X-rays.
Centigray (cGy)
A centigray (cGy) equals 0.01 gray and exactly equals 1 rad. Standard unit in radiation oncology. Typical fraction: 180-200 cGy/day. Total treatment: 4,000-8,000 cGy. Prostate: 7,000-8,000 cGy. Breast: 5,000-6,000 cGy.
Frequently Asked Questions
How do I convert rads to centigrays?
To convert rads to centigrays, multiply the value by 1. For example, 10 rad = 10 cGy.
How many centigrays are in 1 rad?
1 rad equals 1 centigrays.
What is the formula for rads to centigrays?
The formula is: cGy = rad × 1.