Convert Millirems to Sieverts
Convert Millirems (mrem) to Sieverts (Sv) instantly and accurately.
Conversion Formula
Sv = mrem × 1.000000000e-5
About Millirems
The millirem (mrem) equals 10⁻³ rem = 10⁻⁵ Sv. Standard unit in US radiation protection: NRC occupational whole-body limit 5000 mrem/year; US average annual background ~300 mrem; EPA drinking-water dose limit 4 mrem/year; dose rates near US nuclear plant boundaries are reported in mrem/year. 1 mrem = 10⁻⁵ Sv = 10 µSv.
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
| Millirems (mrem) | Sieverts (Sv) |
|---|---|
| 1 mrem | 1 × 10-5 Sv |
| 2 mrem | 2 × 10-5 Sv |
| 5 mrem | 5 × 10-5 Sv |
| 10 mrem | 0.0001 Sv |
| 25 mrem | 0.00025 Sv |
| 50 mrem | 0.0005 Sv |
| 100 mrem | 0.001 Sv |