Millisieverts to Sieverts Converter
1 millisievert = 0.001 sieverts
1 millisievert equals 0.001 sieverts
How to convert millisieverts to sieverts
Sieverts and rem express weighted radiation dose: 1 rem = 0.01 Sv. This page changes units only; it does not determine weighting factors, effective dose or health risk from an absorbed dose.
Sv = mSv × 0.001One millisievert is 0.001 sieverts, so a single multiplication converts any value.
0.01 Sv = 10 × 0.001Millisieverts to sieverts conversion table
Common values in millisieverts, converted to sieverts.
| Millisieverts (mSv) | Sieverts (Sv) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 3 | 0.003 |
| 4 | 0.004 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1,000 | 1 |
About these units
millisievertmSv
One thousandth of a sievert. Preserve whether the source measurement states equivalent dose or effective dose.
sievertSv
The SI unit of equivalent dose: absorbed dose weighted for biological effect.
Sources and precision
Table results are rounded to 8 significant digits; formula constants may be rounded to 10. Worked example answers use 6 significant digits. The converter starts at 6 significant digits and lets you change display precision. Calculations use the stored factors without intermediate rounding. Exact unit definitions do not make an input measurement more precise; conventional and measured factors follow the assumptions stated here.