Radiation Dose
mradtonGy
Convert millirads (mrad) to nanograys (nGy).
Factor1 mrad = 10000 nGy
Converter
mrad
Accepts numbers or expressions, e.g. 150 + 14.7
Result
nGy
Rendered to 6 significant figures.
Formula
Formula
nGy = mrad × 10000
Multiply any value in millirads by 10000 to obtain the value in nanograys.
Worked example
Convert 1 mrad to nGy.
- 01Start with 1 mrad.
- 02Multiply by the conversion factor: 1 × 10000 = 10000 nGy.
Result1 mrad = 10000 nGy
Conversion table
| mrad | nGy |
|---|---|
| 1 | 10000 |
| 2 | 20000 |
| 5 | 50000 |
| 10 | 1.0000e+5 |
| 20 | 2.0000e+5 |
| 50 | 5.0000e+5 |
| 100 | 1.0000e+6 |
| 200 | 2.0000e+6 |
| 500 | 5.0000e+6 |
| 1000 | 1e+7 |
Reference values rounded to 5 significant figures for display.
FAQ
What is the conversion factor from mrad to nGy?
1 mrad equals 10000 nGy. To convert, multiply the value in millirads by 10000.
How do I convert 1 mrad to nGy?
1 mrad = 10000 nGy. For any value, multiply by 10000.
How do I convert nGy back to mrad?
Divide by the same factor — or equivalently, multiply by 0.0001. So 1 nGy = 0.0001 mrad.
When would I need to convert millirad to nanogray?
Radiation absorbed-dose conversions between mrad and nGy 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).