Convert Sieverts to Millisieverts
Convert Sieverts (Sv) to Millisieverts (mSv) instantly and accurately.
Conversion Formula
mSv = Sv × 1000
About Sieverts
The sievert (Sv) is the SI coherent unit of equivalent and effective dose, equal to 1 J/kg of absorbed dose weighted by radiation type. Named after Rolf Sievert (Swedish radiophysicist, 1896-1966). Whole-body LD50 for acute exposure ~3-5 Sv; ICRP emergency responder limit 0.25 Sv; acute radiation syndrome threshold ~1 Sv. 1 Sv = 100 rem = 1 J/kg.
About Millisieverts
The millisievert (mSv) equals 10⁻³ Sv and is the primary international radiation protection unit. ICRP 103 occupational limit 20 mSv/year averaged over 5 years; worldwide average background ~2.4 mSv/year; abdominal CT ~10 mSv; EU medical exposure directive and IAEA dose limits are quoted in mSv. 1 mSv = 10⁻³ Sv = 100 mrem.
Quick Reference Table
| Sieverts (Sv) | Millisieverts (mSv) |
|---|---|
| 1 Sv | 1000 mSv |
| 2 Sv | 2000 mSv |
| 5 Sv | 5000 mSv |
| 10 Sv | 10000 mSv |
| 25 Sv | 25000 mSv |
| 50 Sv | 50000 mSv |
| 100 Sv | 100000 mSv |