Convert Millirems to Microrems

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

Millirems (mrem)
Microrems (µrem)

Conversion Formula

µrem = mrem × 1000

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.

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.

Quick Reference Table

Millirems (mrem)Microrems (µrem)
1 mrem1000 µrem
2 mrem2000 µrem
5 mrem5000 µrem
10 mrem10000 µrem
25 mrem25000 µrem
50 mrem50000 µrem
100 mrem100000 µrem

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