Convert Millisieverts to Sieverts
Convert Millisieverts (mSv) to Sieverts (Sv) instantly and accurately.
Conversion Formula
Sv = mSv × 0.001
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.
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.
Quick Reference Table
| Millisieverts (mSv) | Sieverts (Sv) |
|---|---|
| 1 mSv | 0.001 Sv |
| 2 mSv | 0.002 Sv |
| 5 mSv | 0.005 Sv |
| 10 mSv | 0.01 Sv |
| 25 mSv | 0.025 Sv |
| 50 mSv | 0.05 Sv |
| 100 mSv | 0.1 Sv |