Millisievert is 0.001 sievert units.
Millisievert to Exagray
Convert Millisievert (mSv) to Exagray (EGy) 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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Exagray is 1000000000000000000 gray units.
EGy = mSv × 1e-21
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Formula
1 Millisievert = 1e-21 Exagray
EGy = mSv × 1e-21
mSv = EGy ÷ 1e-21
Conversion table
| 1 mSv | 1e-21 EGy |
| 2 mSv | 2e-21 EGy |
| 5 mSv | 5e-21 EGy |
| 10 mSv | 1e-20 EGy |
| 20 mSv | 2e-20 EGy |
| 50 mSv | 5e-20 EGy |
| 100 mSv | 1e-19 EGy |
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Frequently asked questions
How many Exagrays are in one Millisievert?
One Millisievert equals 1e-21 Exagrays.
How do I convert Millisievert to Exagray?
Multiply the number of Millisieverts by 1e-21 to get Exagrays. To go the other way, multiply Exagrays by 1e+21 (or divide by 1e-21) to get Millisieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Millisievert and Exagray, so the result shown is mathematically precise (rounded only for display).
When is Millisievert to Exagray 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 Exagray are units used in the radiation family of measurements. Millisievert measures equivalent radiation dose (biological risk-weighted dose), while Exagray measures absorbed radiation dose (energy deposited per unit mass). This page provides the direct numeric ratio between the two units. This converter uses the precise relationship 1 Millisievert = 1e-21 Exagrays (equivalently 1 Exagray = 1e+21 Millisieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.