Microsievert to Millisievert Converter
Convert Microsievert (µSv) to Millisievert (mSv) instantly. 1 µSv = 0.001 mSv.
Radiation Converter
10 units available
1 µSv = 0.001 mSv
Formula:
mSv = µSv × 0.001With your value: 1 µSv = 0.001 mSv
Other Microsievert to Millisievert conversions
Microsievert to Millisievert Conversion Table
| Microsievert (µSv) | Millisievert (mSv) |
|---|---|
| 0.5 | 0.0005 |
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 15 | 0.015 |
| 20 | 0.02 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
Millisievert to Microsievert Conversion Table
| Millisievert (mSv) | Microsievert (µSv) |
|---|---|
| 0.5 | 500 |
| 1 | 1,000 |
| 2 | 2,000 |
| 5 | 5,000 |
| 10 | 10,000 |
| 15 | 15,000 |
| 20 | 20,000 |
| 25 | 25,000 |
| 50 | 50,000 |
| 100 | 100,000 |
| 250 | 250,000 |
| 500 | 500,000 |
| 1000 | 1,000,000 |
Where these values come from
Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.
Microsievert (µSv)
Radiation
Gray and sievert are coherent SI units (J/kg). Rad and rem are exactly 0.01 Gy and 0.01 Sv; the curie is exactly 3.7 × 10¹⁰ Bq.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
Millisievert (mSv)
Radiation
Gray and sievert are coherent SI units (J/kg). Rad and rem are exactly 0.01 Gy and 0.01 Sv; the curie is exactly 3.7 × 10¹⁰ Bq.
Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)
Bureau International des Poids et Mesures · Reviewed 2026-07-01
How to Convert Microsievert to Millisievert
To convert from Microsievert (µSv) to Millisievert (mSv), multiply the value by 0.001.
Formula: mSv = µSv × 0.001
Reverse: µSv = mSv × 1,000
Step-by-Step Example
- Start with your value in Microsievert. For example: 5 µSv
- Multiply by the conversion factor: 5 x 0.001
- The result is: 0.005 mSv
About Microsievert
The microsievert (µSv) is a unit of radiation dose. One microsievert equals 1.000000 × 10^-6 grays. UnitConvertLab converts it against every other radiation unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: radiation calculations, engineering and science, education.
About Millisievert
The millisievert (mSv) is a unit of radiation dose. One millisievert equals 0.001 grays. UnitConvertLab converts it against every other radiation unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
Common uses: radiation calculations, engineering and science, education.
Frequently Asked Questions
How many Millisievert are in 1 Microsievert?
There are exactly 0.001 Millisievert in 1 Microsievert. This means the conversion factor from Microsievert to Millisievert is 0.001.
What is the formula to convert Microsievert to Millisievert?
The formula to convert Microsievert to Millisievert is: mSv = µSv × 0.001. For example, to convert 10 Microsievert to Millisievert, you would multiply 10 by 0.001.
What is a Microsievert?
The microsievert (µSv) is a unit of radiation dose. One microsievert equals 1.000000 × 10^-6 grays. UnitConvertLab converts it against every other radiation unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What is a Millisievert?
The millisievert (mSv) is a unit of radiation dose. One millisievert equals 0.001 grays. UnitConvertLab converts it against every other radiation unit using this exact definition, so results are reproducible to full double precision rather than rounded lookup tables.
What are the common uses of Microsievert?
The Microsievert is commonly used in radiation calculations, engineering and science, education.
Related Radiation Conversions
Cite this page
UnitConvertLab. (2026). Microsievert to Millisievert converter. UnitConvertLab. Retrieved from https://unitconvertlab.com/convert/microsievert-to-millisievert