Millisieverts to Rem Converter
Enter the radiation dose in millisieverts below to convert it to rem.
Convert Millisieverts to Rem
Enter a value in millisieverts (mSv) to convert to rem (rem).
Millisievert to Rem Conversion Table
Table showing various millisievert measurements converted to rem. Click any preset value or arrow to load it into the converter.
How to Convert Millisieverts to Rem
To convert millisieverts to rem, multiply the radiation dose by the following conversion ratio: 0.1 rem/millisievert.
Since one millisievert is equal to 0.1 rem, you can use this simple formula to convert:
The radiation dose in rem is equal to the radiation dose in millisieverts multiplied by 0.1.
For example, here's how to convert 5 millisieverts to rem using the formula above.
How Many Rem Are in a Millisievert?
There are 0.1 rem in a millisievert, which is why we use this value in the formula above.
Our millisievert to rem calculator automatically converts your radiation dose measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Millisieverts and rem are both units used to measure radiation dose. Keep reading to learn more about each unit.
What Is a Millisievert?
A millisievert is a unit of radiation dose equal to 1/1,000 of a sievert (0.001 Sv). Medical imaging & dosimetry unit (1 mSv = 0.001 Sv = 100 mrem). [1]
The millisievert is classified as a metric and SI-compatible unit of radiation dose. Millisieverts can be abbreviated as mSv; for example, 1 millisievert can be written as 1 mSv.
In the metric system, "milli" is the standard SI prefix for thousandths, or 10⁻³. This makes the millisievert (mSv) a convenient decimal multiple of the sievert (Sv).
In practice, millisieverts (mSv) are widely used across fine-tolerance laboratory, analytical, and micro-scale radiation dose measurements within SI metric workflows, engineering documentation, and technical data sheets.
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). [2]
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.
When converting radiation dose between millisieverts (mSv) and rem (rem), keep full floating-point precision (1 mSv = 0.1 rem; 1 rem = 10 mSv) during intermediate calculations and round only the final rem figure to match your instrument tolerance.
More Millisievert & Rem Conversions
Need to calculate in the opposite direction? Use our rem to millisieverts calculator to switch your starting unit immediately. You can also explore related tools such as converting rem to millisieverts, converting sieverts to rem, or converting millisieverts to sieverts.
Convert from Millisieverts
Convert to Rem
Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Radiation Metrology Standard — Millisieverts (mSv) to Rem (rem)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Millisievert (mSv) & Rem (Roentgen Equivalent Man) (rem)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (mSv to rem)