Convert Rems to Millirems
Convert Rems (rem) to Millirems (mrem) instantly and accurately.
Conversion Formula
mrem = rem × 1000
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 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
| Rems (rem) | Millirems (mrem) |
|---|---|
| 1 rem | 1000 mrem |
| 2 rem | 2000 mrem |
| 5 rem | 5000 mrem |
| 10 rem | 10000 mrem |
| 25 rem | 25000 mrem |
| 50 rem | 50000 mrem |
| 100 rem | 100000 mrem |