Convert Megasieverts to Rems
Convert Megasieverts (MSv) to Rems (rem) instantly and accurately.
Conversion Formula
rem = MSv × 100000000
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.
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.
Quick Reference Table
| Megasieverts (MSv) | Rems (rem) |
|---|---|
| 1 MSv | 100000000 rem |
| 2 MSv | 200000000 rem |
| 5 MSv | 500000000 rem |
| 10 MSv | 1000000000 rem |
| 25 MSv | 2.5 × 109 rem |
| 50 MSv | 5 × 109 rem |
| 100 MSv | 1 × 1010 rem |