Convert millisieverts to sieverts
1 mSv = 0.001 Sv — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.001Sv
As a fraction: 1/1000
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1 mSv = 0.001 Sv
Show this value in all 7 equivalent dose units
- Sieverts Sv 0.001
- Millisieverts mSv 1
- Microsieverts µSv 1000
- Nanosieverts nSv 1 000 000
- Rems rem 0.1
- Millirems mrem 100
- Microrems µrem 100 000
Every row is Millisievert (mSv) converted through the sievert, in exact rational arithmetic.
How to convert millisieverts to sieverts
Multiply the number of millisieverts by 0.001 to get sieverts.
The exact factor is 0.001 — as a fraction, 1/1000.
Millisievert to Sievert conversion table
| Millisieverts (mSv) | Sieverts (Sv) |
|---|---|
| 1 mSv | 0.001 |
| 2 mSv | 0.002 |
| 3 mSv | 0.003 |
| 5 mSv | 0.005 |
| 10 mSv | 0.01 |
| 20 mSv | 0.02 |
| 25 mSv | 0.025 |
| 50 mSv | 0.05 |
| 100 mSv | 0.1 |
| 250 mSv | 0.25 |
| 500 mSv | 0.5 |
| 1000 mSv | 1 |
Sievert to Millisievert conversion table
| Sieverts (Sv) | Millisieverts (mSv) |
|---|---|
| 1 Sv | 1000 |
| 2 Sv | 2000 |
| 3 Sv | 3000 |
| 5 Sv | 5000 |
| 10 Sv | 10 000 |
| 20 Sv | 20 000 |
| 25 Sv | 25 000 |
| 50 Sv | 50 000 |
| 100 Sv | 100 000 |
| 250 Sv | 250 000 |
| 500 Sv | 500 000 |
| 1000 Sv | 1 000 000 |
Frequently asked
How many sieverts are in a millisievert?
One millisievert equals 0.001 sieverts (mSv → Sv). That figure is exact, not rounded.
How do you convert millisieverts to sieverts?
Multiply the number of millisieverts by 0.001 to get sieverts.
What is 1 Sv in millisieverts?
One sievert is 1000 millisieverts.
What is 10 mSv in Sv?
10 mSv = 0.01 Sv.