Convert Megasieverts to Millirems
Convert Megasieverts (MSv) to Millirems (mrem) instantly and accurately.
Conversion Formula
mrem = MSv × 100000000000
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 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.
Quick Reference Table
| Megasieverts (MSv) | Millirems (mrem) |
|---|---|
| 1 MSv | 1 × 1011 mrem |
| 2 MSv | 2 × 1011 mrem |
| 5 MSv | 5 × 1011 mrem |
| 10 MSv | 1 × 1012 mrem |
| 25 MSv | 2.5 × 1012 mrem |
| 50 MSv | 5 × 1012 mrem |
| 100 MSv | 1 × 1013 mrem |