Rem to Millisieverts
Convert rem to millisieverts instantly.
Rem to Millisieverts (rem to mSv) Converter
1 rem = 10 millisieverts
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- 1 rem = 10 mSv
- 5 rem = 50 mSv
- 10 rem = 100 mSv
- 25 rem = 250 mSv
- MillisievertsmSv
- Remrem
- MillisievertsmSv
- Remrem
How it’s calculated
mSv = rem × 10
- Multiply the value in rem by 10.
- To go back, divide by 10 (or multiply by 0.1).
- 1 rem = 10 mSv · 1 mSv = 0.1 rem
Quick examples
1 rem = 10 millisieverts · 1 mSv = 0.1 rem
- 1 rem = 10 millisieverts
- 5 rem = 50 millisieverts
- 10 rem = 100 millisieverts
- 25 rem = 250 millisieverts
- 100 rem = 1,000 millisieverts
Rem to millisieverts conversion table
| Rem (rem) | Millisieverts (mSv) |
|---|---|
| 0.1 rem | 1 mSv |
| 0.5 rem | 5 mSv |
| 1 rem | 10 mSv |
| 2 rem | 20 mSv |
| 3 rem | 30 mSv |
| 4 rem | 40 mSv |
| 5 rem | 50 mSv |
| 6 rem | 60 mSv |
| 7 rem | 70 mSv |
| 8 rem | 80 mSv |
| 9 rem | 90 mSv |
| 10 rem | 100 mSv |
| 15 rem | 150 mSv |
| 20 rem | 200 mSv |
| 25 rem | 250 mSv |
| 30 rem | 300 mSv |
| 40 rem | 400 mSv |
| 50 rem | 500 mSv |
| 75 rem | 750 mSv |
| 100 rem | 1,000 mSv |
| 250 rem | 2,500 mSv |
| 500 rem | 5,000 mSv |
| 1,000 rem | 10,000 mSv |
About these units
Rem (rem)
other
1 rem = 0.01 Sv (exact)
An older unit of equivalent dose: exactly 0.01 Sv.
Source: NIST SP 811 / Handbook 44
Millisievert (mSv)
SI (metric)
1 mSv = 0.001 Sv (exact)
Source: BIPM SI Brochure (9th ed.) (SI prefixes and accepted units)
Frequently asked questions
How do I convert rem to millisieverts?
Use mSv = rem × 10. Multiply the value in rem by 10.
How many millisieverts are in 1 rem?
1 rem (rem) equals 10 millisieverts (mSv).
How many rem are in 1 millisievert?
1 millisievert (mSv) equals 0.1 rem (rem).
What is 10 rem in mSv?
10 rem = 100 millisieverts.
What is a rem?
An older unit of equivalent dose: exactly 0.01 Sv.
Related conversions
Formula: mSv = rem × 10. Factors last reviewed 2026-10-27.