Rems to Millisieverts (rem to mSv)
Free online rem to millisievert converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
RADIATION DOSE EQUIVALENT CONVERTER — INSTANT RESULT
Formula: multiply the rem value by 10 — i.e. mSv = rem × 10
Quick check: 1 rem = 10 mSv
Quick check: 1 rem = 10 mSv
Rems to Millisieverts conversion table
| Rems (rem) | Millisieverts (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 |
How to convert rems to millisieverts
To convert rems to millisieverts, multiply the amount in rems by 10. For example, 10 rem = 100 mSv. To convert in the other direction, divide by the same factor, or use the ⇄ swap button above.
Convert equivalent dose between sieverts and rems. One sievert equals exactly 100 rem; natural background is about 2–3 mSv per year.
Frequently asked questions
How many millisieverts are in one rem?
One rem is exactly 10 millisieverts.
How do I convert rem to mSv?
Multiply the rem value by 10 to get mSv. The converter at the top of this page does this automatically and works in both directions.
How much is 100 rems in millisieverts?
100 rems equals 1,000 millisieverts.