Convert Rems to Sieverts
Convert Rems (rem) to Sieverts (Sv) instantly and accurately.
Conversion Formula
Sv = rem × 0.01
About Rems
The rem (roentgen equivalent man) equals exactly 0.01 Sv = 1 cSv. The pre-SI unit of equivalent dose, still dominant in US regulation: NRC occupational whole-body limit 5 rem/year; 10 CFR Part 20 exposure limits cited in rem; US military personnel dose records maintained in rem. 1 rem = 0.01 Sv = 1 cSv.
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
| Rems (rem) | Sieverts (Sv) |
|---|---|
| 1 rem | 0.01 Sv |
| 2 rem | 0.02 Sv |
| 5 rem | 0.05 Sv |
| 10 rem | 0.1 Sv |
| 25 rem | 0.25 Sv |
| 50 rem | 0.5 Sv |
| 100 rem | 1 Sv |