How to convert microsieverts to rems
rem = µSv × 0.0001Multiply the value in microsieverts by 0.0001. To go the other way, multiply by 10,000 (or divide by 0.0001).
A microsievert is smaller than a rem: it takes 10,000 microsieverts to make one rem.
Worked examples
- 1 microsievert1 µSv × 0.0001 = 0.0001 rem
- 5 microsieverts5 µSv × 0.0001 = 0.0005 rem
- 10 microsieverts10 µSv × 0.0001 = 0.001 rem
- 20 microsieverts20 µSv × 0.0001 = 0.002 rem
- 100 microsieverts100 µSv × 0.0001 = 0.01 rem
Microsieverts to rems conversion table
Values are calculated by the conversion engine and rounded to 8 significant figures.
| Microsieverts (µSv) | Rems (rem) |
|---|---|
| 0.1 µSv | 0.00001 rem |
| 0.25 µSv | 0.000025 rem |
| 0.5 µSv | 0.00005 rem |
| 1 µSv | 0.0001 rem |
| 2 µSv | 0.0002 rem |
| 3 µSv | 0.0003 rem |
| 4 µSv | 0.0004 rem |
| 5 µSv | 0.0005 rem |
| 6 µSv | 0.0006 rem |
| 7 µSv | 0.0007 rem |
| 8 µSv | 0.0008 rem |
| 9 µSv | 0.0009 rem |
| 10 µSv | 0.001 rem |
| Microsieverts (µSv) | Rems (rem) |
|---|---|
| 12 µSv | 0.0012 rem |
| 15 µSv | 0.0015 rem |
| 20 µSv | 0.002 rem |
| 25 µSv | 0.0025 rem |
| 30 µSv | 0.003 rem |
| 40 µSv | 0.004 rem |
| 50 µSv | 0.005 rem |
| 75 µSv | 0.0075 rem |
| 100 µSv | 0.01 rem |
| 250 µSv | 0.025 rem |
| 500 µSv | 0.05 rem |
| 1,000 µSv | 0.1 rem |
About the units
Microsievert (µSv)
A dental X-ray is around 5 µSv. One microsievert equals 0.000001 sieverts (Sv).
Rem (rem)
“Roentgen equivalent man”: exactly 0.01 Sv.
Frequently asked questions
How many rems are in one microsievert?
There are 0.0001 rems in one microsievert, and this value is exact by definition.
How do I convert microsieverts to rems?
Multiply the number of microsieverts by 0.0001. For example, 10 µSv × 0.0001 = 0.001 rem.
How many microsieverts are in one rem?
One rem equals 10,000 microsieverts. That is the reverse factor, 1 ÷ 0.0001.
What is 10 microsieverts in rems?
10 µSv = 0.001 rem.
Is this µSv to rem 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.