How to convert millirems to microsieverts
µSv = mrem × 10Multiply the value in millirems by 10. To go the other way, multiply by 0.1 (or divide by 10).
A millirem is larger than a microsievert: one millirem contains 10 microsieverts.
Worked examples
- 1 millirem1 mrem × 10 = 10 µSv
- 5 millirems5 mrem × 10 = 50 µSv
- 10 millirems10 mrem × 10 = 100 µSv
- 20 millirems20 mrem × 10 = 200 µSv
- 100 millirems100 mrem × 10 = 1,000 µSv
Millirems to microsieverts conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Millirems (mrem) | Microsieverts (µSv) |
|---|---|
| 0.1 mrem | 1 µSv |
| 0.25 mrem | 2.5 µSv |
| 0.5 mrem | 5 µSv |
| 1 mrem | 10 µSv |
| 2 mrem | 20 µSv |
| 3 mrem | 30 µSv |
| 4 mrem | 40 µSv |
| 5 mrem | 50 µSv |
| 6 mrem | 60 µSv |
| 7 mrem | 70 µSv |
| 8 mrem | 80 µSv |
| 9 mrem | 90 µSv |
| 10 mrem | 100 µSv |
| Millirems (mrem) | Microsieverts (µSv) |
|---|---|
| 12 mrem | 120 µSv |
| 15 mrem | 150 µSv |
| 20 mrem | 200 µSv |
| 25 mrem | 250 µSv |
| 30 mrem | 300 µSv |
| 40 mrem | 400 µSv |
| 50 mrem | 500 µSv |
| 75 mrem | 750 µSv |
| 100 mrem | 1,000 µSv |
| 250 mrem | 2,500 µSv |
| 500 mrem | 5,000 µSv |
| 1,000 mrem | 10,000 µSv |
About the units
Millirem (mrem)
The millirem (mrem) is a unit of equivalent dose. One millirem equals 0.00001 sieverts (Sv).
Microsievert (µSv)
A dental X-ray is around 5 µSv. One microsievert equals 0.000001 sieverts (Sv).
Frequently asked questions
How many microsieverts are in one millirem?
There are 10 microsieverts in one millirem, and this value is exact by definition.
How do I convert millirems to microsieverts?
Multiply the number of millirems by 10. For example, 10 mrem × 10 = 100 µSv.
How many millirems are in one microsievert?
One microsievert equals 0.1 millirems. That is the reverse factor, 1 ÷ 10.
What is 10 millirems in microsieverts?
10 mrem = 100 µSv.
Is this mrem to µSv 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.