Millisievert is 0.001 sievert units.
Millisievert to Petasievert
Convert Millisievert (mSv) to Petasievert (PSv) instantly. Free online radiation converter with formulas, tables and examples.
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Convert radioactivity, absorbed dose, and equivalent dose units by compatible radiation family.
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Petasievert is 1000000000000000 sievert units.
PSv = mSv × 1e-18
Results update instantly for Millisievert to Petasievert conversions.
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Formula
1 Millisievert = 1e-18 Petasievert
PSv = mSv × 1e-18
mSv = PSv ÷ 1e-18
Conversion table
| 1 mSv | 1e-18 PSv |
| 2 mSv | 2e-18 PSv |
| 5 mSv | 5e-18 PSv |
| 10 mSv | 1e-17 PSv |
| 20 mSv | 2e-17 PSv |
| 50 mSv | 5e-17 PSv |
| 100 mSv | 1e-16 PSv |
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Frequently asked questions
How many Petasieverts are in one Millisievert?
One Millisievert equals 1e-18 Petasieverts.
How do I convert Millisievert to Petasievert?
Multiply the number of Millisieverts by 1e-18 to get Petasieverts. To go the other way, multiply Petasieverts by 1e+18 (or divide by 1e-18) to get Millisieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Millisievert and Petasievert, so the result shown is mathematically precise (rounded only for display).
When is Millisievert to Petasievert conversion commonly used?
It is commonly used in nuclear medicine, radiation safety, health physics, and scientific research involving radioactivity and radiation dose.
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About this conversion
Millisievert and Petasievert 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 Millisievert = 1e-18 Petasieverts (equivalently 1 Petasievert = 1e+18 Millisieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.