Convert Microrems to Millirems

Convert Microrems (µrem) to Millirems (mrem) instantly and accurately.

Microrems (µrem)
Millirems (mrem)

Conversion Formula

mrem = µrem × 0.001

About Microrems

The microrem (µrem) equals 10⁻⁶ rem = 10⁻⁸ Sv. Used in legacy US health physics instrumentation and NRC licence documentation for extremely low ambient dose-rate measurements; older EPA environmental surveillance reports quote dose rates in µrem/h where modern instruments report nSv/h. 1 µrem = 10⁻⁸ Sv = 10⁻² µSv.

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

Microrems (µrem)Millirems (mrem)
1 µrem0.001 mrem
2 µrem0.002 mrem
5 µrem0.005 mrem
10 µrem0.01 mrem
25 µrem0.025 mrem
50 µrem0.05 mrem
100 µrem0.1 mrem

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