Millirem to Microsieverts Converter
Enter the radiation dose in millirem below to convert it to microsieverts.
Convert Millirem to Microsieverts
Enter a value in millirem (mrem) to convert to microsieverts (µSv).
Millirem to Microsievert Conversion Table
Table showing various millirem measurements converted to microsieverts. Click any preset value or arrow to load it into the converter.
How to Convert Millirem to Microsieverts
To convert millirem to microsieverts, multiply the radiation dose by the following conversion ratio: 10 microsieverts/millirem.
Since one millirem is equal to 10 microsieverts, you can use this simple formula to convert:
The radiation dose in microsieverts is equal to the radiation dose in millirem multiplied by 10.
For example, here's how to convert 5 millirem to microsieverts using the formula above.
How Many Microsieverts Are in a Millirem?
There are 10 microsieverts in a millirem, which is why we use this value in the formula above.
Our millirem to microsievert calculator automatically converts your radiation dose measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Millirem and microsieverts are both units used to measure radiation dose. Keep reading to learn more about each unit.
What Is a Millirem?
A millirem is a unit of radiation dose equal to 1/100,000 of a sievert (0.00001 Sv). US occupational dosimetry unit (1 mrem = 10 µSv = 0.01 mSv). [1]
The millirem is classified as a standard unit of radiation dose. Millirem can be abbreviated as mrem; for example, 1 millirem can be written as 1 mrem.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millirem (mrem) a convenient decimal multiple of the sievert (Sv).
In practice, millirem (mrem) are widely used across fine-tolerance laboratory, analytical, and micro-scale radiation dose measurements within international standard workflows, engineering documentation, and technical data sheets.
What Is a Microsievert?
A microsievert is a unit of radiation dose equal to 1/1,000,000 of a sievert (0.000001 Sv). Background radiation dosimetry unit (10⁻⁶ Sv = 0.1 mrem). [2]
The microsievert is classified as a metric and SI-compatible unit of radiation dose. Microsieverts can be abbreviated as µSv; for example, 1 microsievert can be written as 1 µSv.
In the metric system, "micro" is the standard SI prefix for millionths, or 10⁻⁶. This makes the microsievert (µSv) a convenient decimal multiple of the sievert (Sv).
In practice, microsieverts (µSv) are widely used across fine-tolerance laboratory, analytical, and micro-scale radiation dose measurements within SI metric workflows, engineering documentation, and technical data sheets.
When converting radiation dose between millirem (mrem) and microsieverts (µSv), keep full floating-point precision (1 mrem = 10 µSv; 1 µSv = 0.1 mrem) during intermediate calculations and round only the final microsievert figure to match your instrument tolerance.
More Millirem & Microsievert Conversions
Need to calculate in the opposite direction? Use our microsieverts to millirem calculator to switch your starting unit immediately. You can also explore related tools such as converting microsieverts to millirem, converting sieverts to microsieverts, or converting sieverts to millisieverts.
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Radiation Metrology Standard — Millirem (mrem) to Microsieverts (µSv)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Millirem (mrem) & Microsievert (µSv)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (mrem to µSv)