Kilogray is 1000 gray units.
Kilogray to Millisievert
Convert Kilogray (kGy) to Millisievert (mSv) 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.
Millisievert is 0.001 sievert units.
mSv = kGy × 1e+6
Results update instantly for Kilogray to Millisievert conversions.
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Formula
1 Kilogray = 1e+6 Millisievert
mSv = kGy × 1e+6
kGy = mSv ÷ 1e+6
Conversion table
| 1 kGy | 1e+6 mSv |
| 2 kGy | 2e+6 mSv |
| 5 kGy | 5e+6 mSv |
| 10 kGy | 1e+7 mSv |
| 20 kGy | 2e+7 mSv |
| 50 kGy | 5e+7 mSv |
| 100 kGy | 1e+8 mSv |
Related conversions
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Frequently asked questions
How many Millisieverts are in one Kilogray?
One Kilogray equals 1e+6 Millisieverts.
How do I convert Kilogray to Millisievert?
Multiply the number of Kilograys by 1e+6 to get Millisieverts. To go the other way, multiply Millisieverts by 1e-6 (or divide by 1e+6) to get Kilograys.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Kilogray and Millisievert, so the result shown is mathematically precise (rounded only for display).
When is Kilogray to Millisievert 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
Kilogray and Millisievert are units used in the radiation family of measurements. Kilogray measures absorbed radiation dose (energy deposited per unit mass), while Millisievert 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 Kilogray = 1e+6 Millisieverts (equivalently 1 Millisievert = 1e-6 Kilograys), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.