Milligray is 0.001 gray units.
Milligray to Petasievert
Convert Milligray (mGy) 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 = mGy × 1e-18
Results update instantly for Milligray to Petasievert conversions.
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Formula
1 Milligray = 1e-18 Petasievert
PSv = mGy × 1e-18
mGy = PSv ÷ 1e-18
Conversion table
| 1 mGy | 1e-18 PSv |
| 2 mGy | 2e-18 PSv |
| 5 mGy | 5e-18 PSv |
| 10 mGy | 1e-17 PSv |
| 20 mGy | 2e-17 PSv |
| 50 mGy | 5e-17 PSv |
| 100 mGy | 1e-16 PSv |
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Frequently asked questions
How many Petasieverts are in one Milligray?
One Milligray equals 1e-18 Petasieverts.
How do I convert Milligray to Petasievert?
Multiply the number of Milligrays by 1e-18 to get Petasieverts. To go the other way, multiply Petasieverts by 1e+18 (or divide by 1e-18) to get Milligrays.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Milligray and Petasievert, so the result shown is mathematically precise (rounded only for display).
When is Milligray 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
Milligray and Petasievert are units used in the radiation family of measurements. Milligray measures absorbed radiation dose (energy deposited per unit mass), while Petasievert measures equivalent radiation dose (biological risk-weighted dose). This page provides the direct numeric ratio between the two units. This converter uses the precise relationship 1 Milligray = 1e-18 Petasieverts (equivalently 1 Petasievert = 1e+18 Milligrays), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.