Convert Rems to Megasieverts
Convert Rems (rem) to Megasieverts (MSv) instantly and accurately.
Conversion Formula
MSv = rem × 1.000000000e-8
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 Megasieverts
The megasievert (MSv) equals 10⁶ Sv. Entirely theoretical for biological contexts - severe radiation damage occurs well below 1 MSv. Appears in materials science modelling of extreme radiation environments, theoretical nuclear detonation effects at point of burst, and advanced reactor pressure vessel damage accumulation calculations. 1 MSv = 10⁶ Sv = 10⁸ rem.
Quick Reference Table
| Rems (rem) | Megasieverts (MSv) |
|---|---|
| 1 rem | 1 × 10-8 MSv |
| 2 rem | 2 × 10-8 MSv |
| 5 rem | 5 × 10-8 MSv |
| 10 rem | 1 × 10-7 MSv |
| 25 rem | 2.5 × 10-7 MSv |
| 50 rem | 5 × 10-7 MSv |
| 100 rem | 1 × 10-6 MSv |