Millirem (mrem)
One thousandth of a rem: exactly 10 µSv.
What is a millirem?
- Symbol
- mrem
- Quantity
- Radiation Dose (Equivalent)
- Unit system
- other
- Definition
- One thousandth of a rem: exactly 10 µSv.
- Exact
- Yes, the value is exact by definition
- Source
- NIST Special Publication 811 (2008), Appendix B.8
Common applications
Used in the United States for everyday dose figures, such as background radiation and dosimeter readings.
Millirem in other radiation dose (equivalent) units
- 1 mrem = 0.00001 SvSievert
- 1 mrem = 0.01 mSvMillirem to Millisievert converter
- 1 mrem = 10 µSvMillirem to Microsievert converter
- 1 mrem = 0.001 remRem
Millirem quick reference
| Millirem | Millisievert | Microsievert | Sievert |
|---|---|---|---|
| 1 mrem | = 0.01 mSv | = 10 µSv | = 0.00001 Sv |
| 10 mrem | = 0.1 mSv | = 100 µSv | = 0.0001 Sv |
| 100 mrem | = 1 mSv | = 1000 µSv | = 0.001 Sv |
| 1000 mrem | = 10 mSv | = 10000 µSv | = 0.01 Sv |
Where the millirem fits
The next smaller radiation dose (equivalent) unit is the microsievert (µSv). 1 mrem = 10 µSv, and 1 µSv = 0.1 mrem.
The next larger radiation dose (equivalent) unit is the millisievert (mSv). 1 mrem = 0.01 mSv, and 1 mSv = 100 mrem.
Frequently asked questions
- How many millisieverts are in one millirem?
- One millirem = 0.01 mSv (millisieverts).
- How many microsieverts are in one millirem?
- One millirem = 10 µSv (microsieverts).
- How many sieverts are in one millirem?
- One millirem = 0.00001 Sv (sieverts).