Milligray is 0.001 gray units.
Milligray to Sievert
Convert Milligray (mGy) to Sievert (Sv) instantly. Free online radiation converter with formulas, tables and examples.
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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.
Sievert is equivalent dose.
Sv = mGy × 0.001
Results update instantly for Milligray to Sievert conversions.
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Formula
1 Milligray = 0.001 Sievert
Sv = mGy × 0.001
mGy = Sv ÷ 0.001
Conversion table
| 1 mGy | 0.001 Sv |
| 2 mGy | 0.002 Sv |
| 5 mGy | 0.005 Sv |
| 10 mGy | 0.01 Sv |
| 20 mGy | 0.02 Sv |
| 50 mGy | 0.05 Sv |
| 100 mGy | 0.1 Sv |
Related conversions
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Frequently asked questions
How many Sieverts are in one Milligray?
One Milligray equals 0.001 Sieverts.
How do I convert Milligray to Sievert?
Multiply the number of Milligrays by 0.001 to get Sieverts. To go the other way, multiply Sieverts by 1000 (or divide by 0.001) to get Milligrays.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Milligray and Sievert, so the result shown is mathematically precise (rounded only for display).
When is Milligray to Sievert 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 Sievert are units used in the radiation family of measurements. Milligray measures absorbed radiation dose (energy deposited per unit mass), while Sievert 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 = 0.001 Sieverts (equivalently 1 Sievert = 1000 Milligrays), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.