Skip to main content
UnitConvertersGo

Microsieverts to Millirem Converter

Enter the radiation dose in microsieverts below to convert it to millirem.

Convert Microsieverts to Millirem

Enter a value in microsieverts (µSv) to convert to millirem (mrem).

Result
•
0.5millirem
5 µSv = 0.5 mrem
Result updates automatically
Get Widget
Suggested Conversions
Reference:NIST OWM (SI Units — Length)
[1–3] ↓

Microsievert to Millirem Conversion Table

Table showing various microsievert measurements converted to millirem. Click any preset value or arrow to load it into the converter.

Microsieverts (µSv)Millirem (mrem)
1 µSv0.1 mrem
2 µSv0.2 mrem
2.5 µSv0.25 mrem
5 µSv0.5 mrem
10 µSv1 mrem
15 µSv1.5 mrem
20 µSv2 mrem
25 µSv2.5 mrem
30 µSv3 mrem
50 µSv5 mrem

How to Convert Microsieverts to Millirem

To convert microsieverts to millirem, multiply the radiation dose by the following conversion ratio: 0.1 millirem/microsievert.

Since one microsievert is equal to 0.1 millirem, you can use this simple formula to convert:

millirem = microsieverts × 0.1

The radiation dose in millirem is equal to the radiation dose in microsieverts multiplied by 0.1.

For example, here's how to convert 5 microsieverts to millirem using the formula above.

millirem = (5 µSv × 0.1) = 0.5 mrem

How Many Millirem Are in a Microsievert?

There are 0.1 millirem in a microsievert, which is why we use this value in the formula above.

1 µSv = 0.1 mrem|1 mrem = 10 µSv

Our microsievert to millirem calculator automatically converts your radiation dose measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.

Microsieverts and millirem are both units used to measure radiation dose. Keep reading to learn more about each unit.

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). [1]

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.

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 microsieverts (µSv) and millirem (mrem), keep full floating-point precision (1 µSv = 0.1 mrem; 1 mrem = 10 µSv) during intermediate calculations and round only the final millirem figure to match your instrument tolerance.

More Microsievert & Millirem Conversions

Need to calculate in the opposite direction? Use our millirem to microsieverts calculator to switch your starting unit immediately. You can also explore related tools such as converting millirem to microsieverts, converting microsieverts to sieverts, or converting sieverts to millisieverts.

Frequently Asked Questions

There are 0.1 millirem (mrem) in 1 microsievert (µSv). Conversely, 1 millirem (mrem) is equal to 10 microsieverts (µSv).

References

NIST · BIPM · ISO
  1. [1]
    NIST OWM (SI Units — Length)·Radiation Metrology Standard — Microsieverts (µSv) to Millirem (mrem)
    NIST OWM Standard
  2. [2]
    BIPM (SI Base Unit: Metre (m))·Unit Specifications: Microsievert (µSv) & Millirem (mrem)
    BIPM Specification
  3. [3]
    NIST HB 133 (NIST Handbook 133 (2019 Ed.))·Conversion Factors & Mathematical Basis (µSv to mrem)
    NIST HB 133 Reference
Measurement Navigator78 Categories9 Scientific Domains

Browse All 78 Measurement Categories

Radiology & Dosimetry ConvertersHealth physics and ionizing radiation converters for equivalent dose (sieverts to rem), radioactive activity (becquerels to curies), radiation exposure (roentgens to C/kg), and absorbed dose (grays to rad).