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