Radiation Dose
mGytocGy
Convert milligrays (mGy) to centigrays (cGy).
Factor1 mGy = 0.1 cGy
Converter
mGy
Accepts numbers or expressions, e.g. 150 + 14.7
Result
cGy
Rendered to 6 significant figures.
Formula
Formula
cGy = mGy × 0.1
Multiply any value in milligrays by 0.1 to obtain the value in centigrays.
Worked example
Convert 100 mGy to cGy.
- 01Start with 100 mGy.
- 02Multiply by the conversion factor: 100 × 0.1 = 10 cGy.
Result100 mGy = 10 cGy
Conversion table
| mGy | cGy |
|---|---|
| 1 | 0.1 |
| 2 | 0.2 |
| 5 | 0.5 |
| 10 | 1 |
| 20 | 2 |
| 50 | 5 |
| 100 | 10 |
| 200 | 20 |
| 500 | 50 |
| 1000 | 100 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mGy to cGy?
1 mGy equals 0.1 cGy. To convert, multiply the value in milligrays by 0.1.
How do I convert 1 mGy to cGy?
1 mGy = 0.1 cGy. For any value, multiply by 0.1.
How do I convert cGy back to mGy?
Divide by the same factor — or equivalently, multiply by 10. So 1 cGy = 10 mGy.
When would I need to convert milligray to centigray?
Radiation absorbed-dose conversions between mGy 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).