Megasievert is 1000000 sievert units.
Megasievert to Microsievert
Convert Megasievert (MSv) to Microsievert (uSv) 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.
Microsievert is 0.000001 sievert units.
uSv = MSv × 1e+12
Results update instantly for Megasievert to Microsievert conversions.
Reserved above the conversion cards and below the converter.
Formula
1 Megasievert = 1e+12 Microsievert
uSv = MSv × 1e+12
MSv = uSv ÷ 1e+12
Conversion table
| 1 MSv | 1e+12 uSv |
| 2 MSv | 2e+12 uSv |
| 5 MSv | 5e+12 uSv |
| 10 MSv | 1e+13 uSv |
| 20 MSv | 2e+13 uSv |
| 50 MSv | 5e+13 uSv |
| 100 MSv | 1e+14 uSv |
Related conversions
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many Microsieverts are in one Megasievert?
One Megasievert equals 1e+12 Microsieverts.
How do I convert Megasievert to Microsievert?
Multiply the number of Megasieverts by 1e+12 to get Microsieverts. To go the other way, multiply Microsieverts by 1e-12 (or divide by 1e+12) to get Megasieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Megasievert and Microsievert, so the result shown is mathematically precise (rounded only for display).
When is Megasievert to Microsievert 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
Megasievert and Microsievert 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 Megasievert = 1e+12 Microsieverts (equivalently 1 Microsievert = 1e-12 Megasieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.