Convert Milliroentgen to Millisievert
Type the number of milliroentgens that you wish to convert to millisieverts.
How to Convert Milliroentgens to Millisieverts
The milliroentgen and millisievert are both units of radiation dose. 1 millisievert equals 114.02508552 milliroentgens. This means to convert milliroentgens to millisieverts, you divide by 114.02508552.
Formula
Step-by-Step Example
Convert 5 mR to millisieverts:
We need to convert milliroentgens to millisieverts
Since 1 mSv = 114.02508552 mR, divide by 114.02508552
5 ÷ 114.02508552 = 0.04385
5 mR = 0.04385 mSv
Milliroentgen to Millisievert Conversion Table
Quick reference table for common milliroentgen to millisievert conversions. Click any value for detailed calculation.
| Milliroentgens (mR) | Millisieverts (mSv) |
|---|---|
| 0.1 mR | 0.000877 mSv |
| 0.5 mR | 0.004385 mSv |
| 1 mR | 0.00877 mSv |
| 2 mR | 0.01754 mSv |
| 5 mR | 0.04385 mSv |
| 10 mR | 0.0877 mSv |
| 25 mR | 0.21925 mSv |
| 50 mR | 0.4385 mSv |
| 100 mR | 0.877 mSv |
About These Units
Milliroentgen (mR)
A milliroentgen (mR) equals 0.001 roentgen. Radiation survey meters often display mR/h for monitoring X-ray and gamma fields. Natural background: 10-20 mR/year. Typical survey meter range: 0-1000 mR/h.
Millisievert (mSv)
A millisievert (mSv) equals 0.001 sieverts or 100 mrem. Natural background: 2-3 mSv/year. CT scan: 2-15 mSv. Annual occupational limit: 20-50 mSv (varies by country). Single dose above 100 mSv increases cancer risk slightly.
Frequently Asked Questions
How do I convert milliroentgens to millisieverts?
To convert milliroentgens to millisieverts, divide the value by 114.02508552. For example, 10 mR = 0.0877 mSv.
How many millisieverts are in 1 milliroentgen?
1 milliroentgen equals 0.00877 millisieverts.
What is the formula for milliroentgens to millisieverts?
The formula is: mSv = mR ÷ 114.02508552.