Sieverts to Millirem Converter
Enter the radiation dose in sieverts below to convert it to millirem.
Convert Sieverts to Millirem
Enter a value in sieverts (Sv) to convert to millirem (mrem).
Sievert to Millirem Conversion Table
Table showing various sievert measurements converted to millirem. Click any preset value or arrow to load it into the converter.
| Sieverts (Sv) | Millirem (mrem) |
|---|---|
| 1 Sv | 100,000 mrem |
| 2 Sv | 200,000 mrem |
| 2.5 Sv | 250,000 mrem |
| 5 Sv | 500,000 mrem |
| 10 Sv | 1,000,000 mrem |
| 15 Sv | 1,500,000 mrem |
| 20 Sv | 2,000,000 mrem |
| 25 Sv | 2,500,000 mrem |
| 30 Sv | 3,000,000 mrem |
| 50 Sv | 5,000,000 mrem |
How to Convert Sieverts to Millirem
To convert sieverts to millirem, multiply the radiation dose by the following conversion ratio: 100,000 millirem/sievert.
Since one sievert is equal to 100,000 millirem, you can use this simple formula to convert:
The radiation dose in millirem is equal to the radiation dose in sieverts multiplied by 100,000.
For example, here's how to convert 5 sieverts to millirem using the formula above.
How Many Millirem Are in a Sievert?
There are 100,000 millirem in a sievert, which is why we use this value in the formula above.
Our sievert to millirem calculator automatically converts your radiation dose measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Sieverts and millirem are both units used to measure radiation dose. Keep reading to learn more about each unit.
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. [1]
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.
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). [2]
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.
When converting radiation dose between sieverts (Sv) and millirem (mrem), keep full floating-point precision (1 Sv = 100,000 mrem; 1 mrem = 0.00001 Sv) during intermediate calculations and round only the final millirem figure to match your instrument tolerance.
More Sievert & Millirem Conversions
Need to calculate in the opposite direction? Use our millirem to sieverts calculator to switch your starting unit immediately. You can also explore related tools such as converting millirem to sieverts, converting sieverts to millisieverts, or converting sieverts to microsieverts.
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Length)·Radiation Metrology Standard — Sieverts (Sv) to Millirem (mrem)
- [2]BIPM SpecificationBIPM (SI Base Unit: Metre (m))·Unit Specifications: Sievert (Sv) & Millirem (mrem)
- [3]NIST HB 133 ReferenceNIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (Sv to mrem)