Gray is absorbed dose in joules per kilogram.
Gray to Terasievert
Convert Gray (Gy) to Terasievert (TSv) 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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Some unit families need one extra value for a physically accurate result.
Terasievert is 1000000000000 sievert units.
TSv = Gy × 1e-12
Results update instantly for Gray to Terasievert conversions.
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Formula
1 Gray = 1e-12 Terasievert
TSv = Gy × 1e-12
Gy = TSv ÷ 1e-12
Conversion table
| 1 Gy | 1e-12 TSv |
| 2 Gy | 2e-12 TSv |
| 5 Gy | 5e-12 TSv |
| 10 Gy | 1e-11 TSv |
| 20 Gy | 2e-11 TSv |
| 50 Gy | 5e-11 TSv |
| 100 Gy | 1e-10 TSv |
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Frequently asked questions
How many Terasieverts are in one Gray?
One Gray equals 1e-12 Terasieverts.
How do I convert Gray to Terasievert?
Multiply the number of Grays by 1e-12 to get Terasieverts. To go the other way, multiply Terasieverts by 1e+12 (or divide by 1e-12) to get Grays.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Gray and Terasievert, so the result shown is mathematically precise (rounded only for display).
When is Gray to Terasievert 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 Terasievert are units used in the radiation family of measurements. Gray measures absorbed radiation dose (energy deposited per unit mass), while Terasievert 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 = 1e-12 Terasieverts (equivalently 1 Terasievert = 1e+12 Grays), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.