Radiation Dose
mradtocGy
Convert millirads (mrad) to centigrays (cGy).
Factor1 mrad = 0.001 cGy
Converter
mrad
Accepts numbers or expressions, e.g. 150 + 14.7
Result
cGy
Rendered to 6 significant figures.
Formula
Formula
cGy = mrad × 0.001
Multiply any value in millirads by 0.001 to obtain the value in centigrays.
Worked example
Convert 1000 mrad to cGy.
- 01Start with 1000 mrad.
- 02Multiply by the conversion factor: 1000 × 0.001 = 1 cGy.
Result1000 mrad = 1 cGy
Conversion table
| mrad | cGy |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 200 | 0.2 |
| 500 | 0.5 |
| 1000 | 1 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mrad to cGy?
1 mrad equals 0.001 cGy. To convert, multiply the value in millirads by 0.001.
How do I convert 1 mrad to cGy?
1 mrad = 0.001 cGy. For any value, multiply by 0.001.
How do I convert cGy back to mrad?
Divide by the same factor — or equivalently, multiply by 1000. So 1 cGy = 1000 mrad.
When would I need to convert millirad to centigray?
Radiation absorbed-dose conversions between mrad and cGy are used in radiological protection, medical physics, and nuclear-industry health physics. Gray (Gy) is the SI standard; rad remains common in older US health-physics documentation (1 Gy = 100 rad).
Is the conversion exact?
The factor shown is precise to at least 7 significant figures. For most process-engineering work this is far better than instrument accuracy. For metrology or trade applications, refer to the relevant national standard (NIST, BIPM, ISO 80000).