Rem to Microsieverts Converter
Enter the radiation dose in rem below to convert it to microsieverts.
Convert Rem to Microsieverts
Enter a value in rem (rem) to convert to microsieverts (µSv).
Rem to Microsievert Conversion Table
Table showing various rem measurements converted to microsieverts. Click any preset value or arrow to load it into the converter.
| Rem (rem) | Microsieverts (µSv) |
|---|---|
| 1 rem | 10,000 µSv |
| 2 rem | 20,000 µSv |
| 2.5 rem | 25,000 µSv |
| 5 rem | 50,000 µSv |
| 10 rem | 100,000 µSv |
| 15 rem | 150,000 µSv |
| 20 rem | 200,000 µSv |
| 25 rem | 250,000 µSv |
| 30 rem | 300,000 µSv |
| 50 rem | 500,000 µSv |
How to Convert Rem to Microsieverts
To convert rem to microsieverts, multiply the radiation dose by the following conversion ratio: 10,000 microsieverts/rem.
Since one rem is equal to 10,000 microsieverts, you can use this simple formula to convert:
The radiation dose in microsieverts is equal to the radiation dose in rem multiplied by 10,000.
For example, here's how to convert 5 rem to microsieverts using the formula above.
How Many Microsieverts Are in a Rem?
There are 10,000 microsieverts in a rem, which is why we use this value in the formula above.
Our rem to microsievert calculator automatically converts your radiation dose measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Rem and microsieverts are both units used to measure radiation dose. Keep reading to learn more about each unit.
What Is a Rem?
A rem is a unit of radiation dose equal to 1/100 of a sievert (0.01 Sv). Traditional biological dose unit equal to 0.01 Sieverts (10 mSv). [1]
The rem is classified as a standard unit of radiation dose. Rem can be abbreviated as rem; for example, 1 rem can be written as 1 rem.
When working with rem (rem) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, rem (rem) 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 rem (rem) and microsieverts (µSv), keep full floating-point precision (1 rem = 10,000 µSv; 1 µSv = 0.0001 rem) during intermediate calculations and round only the final microsievert figure to match your instrument tolerance.
More Rem & Microsievert Conversions
Need to calculate in the opposite direction? Use our microsieverts to rem calculator to switch your starting unit immediately. You can also explore related tools such as converting microsieverts to rem, converting sieverts to microsieverts, or converting rem to sieverts.
Convert from Rem
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Radiation Metrology Standard — Rem (rem) to Microsieverts (µSv)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Rem (Roentgen Equivalent Man) (rem) & Microsievert (µSv)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (rem to µSv)