How to convert millirems to millisieverts
mSv = mrem × 0.01Multiply the value in millirems by 0.01. To go the other way, multiply by 100 (or divide by 0.01).
A millirem is smaller than a millisievert: it takes 100 millirems to make one millisievert.
Worked examples
- 1 millirem1 mrem × 0.01 = 0.01 mSv
- 5 millirems5 mrem × 0.01 = 0.05 mSv
- 10 millirems10 mrem × 0.01 = 0.1 mSv
- 20 millirems20 mrem × 0.01 = 0.2 mSv
- 100 millirems100 mrem × 0.01 = 1 mSv
Millirems to millisieverts conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Millirems (mrem) | Millisieverts (mSv) |
|---|---|
| 0.1 mrem | 0.001 mSv |
| 0.25 mrem | 0.0025 mSv |
| 0.5 mrem | 0.005 mSv |
| 1 mrem | 0.01 mSv |
| 2 mrem | 0.02 mSv |
| 3 mrem | 0.03 mSv |
| 4 mrem | 0.04 mSv |
| 5 mrem | 0.05 mSv |
| 6 mrem | 0.06 mSv |
| 7 mrem | 0.07 mSv |
| 8 mrem | 0.08 mSv |
| 9 mrem | 0.09 mSv |
| 10 mrem | 0.1 mSv |
| Millirems (mrem) | Millisieverts (mSv) |
|---|---|
| 12 mrem | 0.12 mSv |
| 15 mrem | 0.15 mSv |
| 20 mrem | 0.2 mSv |
| 25 mrem | 0.25 mSv |
| 30 mrem | 0.3 mSv |
| 40 mrem | 0.4 mSv |
| 50 mrem | 0.5 mSv |
| 75 mrem | 0.75 mSv |
| 100 mrem | 1 mSv |
| 250 mrem | 2.5 mSv |
| 500 mrem | 5 mSv |
| 1,000 mrem | 10 mSv |
About the units
Millirem (mrem)
The millirem (mrem) is a unit of equivalent dose. One millirem equals 0.00001 sieverts (Sv).
Millisievert (mSv)
Annual occupational limits and medical-imaging doses are quoted in mSv. One millisievert equals 0.001 sieverts (Sv).
Frequently asked questions
How many millisieverts are in one millirem?
There are 0.01 millisieverts in one millirem, and this value is exact by definition.
How do I convert millirems to millisieverts?
Multiply the number of millirems by 0.01. For example, 10 mrem × 0.01 = 0.1 mSv.
How many millirems are in one millisievert?
One millisievert equals 100 millirems. That is the reverse factor, 1 ÷ 0.01.
What is 10 millirems in millisieverts?
10 mrem = 0.1 mSv.
Is this mrem to mSv converter accurate?
Yes. Both units are defined exactly in terms of SI units, so the conversion factor is exact; results are shown to 12 significant figures by default and you can change precision in the converter. Calculations run in your browser using the same tested engine that generated this page.