Millirem to Sieverts Converter
Enter the radiation dose in millirem below to convert it to sieverts.
Convert Millirem to Sieverts
Enter a value in millirem (mrem) to convert to sieverts (Sv).
Millirem to Sievert Conversion Table
Table showing various millirem measurements converted to sieverts. Click any preset value or arrow to load it into the converter.
How to Convert Millirem to Sieverts
To convert millirem to sieverts, multiply the radiation dose by the following conversion ratio: 0.00001 sieverts/millirem.
Since one millirem is equal to 0.00001 sieverts, you can use this simple formula to convert:
The radiation dose in sieverts is equal to the radiation dose in millirem multiplied by 0.00001.
For example, here's how to convert 5 millirem to sieverts using the formula above.
How Many Sieverts Are in a Millirem?
There are 0.00001 sieverts in a millirem, which is why we use this value in the formula above.
Our millirem to sievert calculator automatically converts your radiation dose measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Millirem and sieverts 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 Sievert?
SI derived unit of ionizing radiation equivalent dose (1 Sv = 100 rem). It serves as a primary reference unit for measuring radiation dose across scientific and practical applications. [2]
The sievert is classified as an International System of Units (SI) unit of radiation dose. Sieverts can be abbreviated as Sv; for example, 1 sievert can be written as 1 Sv.
As the primary coherent reference unit for radiation dose in this category, all other radiation dose units are mathematically anchored to the sievert (Sv).
In practice, sieverts (Sv) are widely used across standard radiation dose applications within International System of Units (SI) workflows, engineering documentation, and technical data sheets.
When converting radiation dose between millirem (mrem) and sieverts (Sv), keep full floating-point precision (1 mrem = 0.00001 Sv; 1 Sv = 100,000 mrem) during intermediate calculations and round only the final sievert figure to match your instrument tolerance.
More Millirem & Sievert Conversions
Need to calculate in the opposite direction? Use our sieverts to millirem calculator to switch your starting unit immediately. You can also explore related tools such as converting sieverts to millirem, converting millisieverts to sieverts, or converting microsieverts to sieverts.
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Radiation Metrology Standard — Millirem (mrem) to Sieverts (Sv)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Millirem (mrem) & Sievert (Sv)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (mrem to Sv)