Microsievert is 0.000001 sievert units.
Microsievert to Millisievert
Convert Microsievert (uSv) to Millisievert (mSv) instantly. Free online radiation converter with formulas, tables and examples.
Reserved for a responsive leaderboard above the conversion details.
Professional calculator style
World-scale conversion engine
30+ categories
6,500+ units
Instant results
Offline ready
Converter
Radiation Converter
Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
Context values
Some unit families need one extra value for a physically accurate result.
Millisievert is 0.001 sievert units.
mSv = uSv × 0.001
Results update instantly for Microsievert to Millisievert conversions.
Reserved above the conversion cards and below the converter.
Formula
1 Microsievert = 0.001 Millisievert
mSv = uSv × 0.001
uSv = mSv ÷ 0.001
Conversion table
| 1 uSv | 0.001 mSv |
| 2 uSv | 0.002 mSv |
| 5 uSv | 0.005 mSv |
| 10 uSv | 0.01 mSv |
| 20 uSv | 0.02 mSv |
| 50 uSv | 0.05 mSv |
| 100 uSv | 0.1 mSv |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many Millisieverts are in one Microsievert?
One Microsievert equals 0.001 Millisieverts.
How do I convert Microsievert to Millisievert?
Multiply the number of Microsieverts by 0.001 to get Millisieverts. To go the other way, multiply Millisieverts by 1000 (or divide by 0.001) to get Microsieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Microsievert and Millisievert, so the result shown is mathematically precise (rounded only for display).
When is Microsievert to Millisievert conversion commonly used?
It is commonly used in nuclear medicine, radiation safety, health physics, and scientific research involving radioactivity and radiation dose.
Reserved between the FAQ and the article so the page stays balanced.
About this conversion
Microsievert and Millisievert are units used in the radiation family of measurements. Both units measure equivalent radiation dose (biological risk-weighted dose). This converter uses the precise relationship 1 Microsievert = 0.001 Millisieverts (equivalently 1 Millisievert = 1000 Microsieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.