Attosievert is 1e-18 sievert units.
Attosievert to Gray
Convert Attosievert (aSv) to Gray (Gy) 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.
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Some unit families need one extra value for a physically accurate result.
Gray is absorbed dose in joules per kilogram.
Gy = aSv × 1e-18
Results update instantly for Attosievert to Gray conversions.
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Formula
1 Attosievert = 1e-18 Gray
Gy = aSv × 1e-18
aSv = Gy ÷ 1e-18
Conversion table
| 1 aSv | 1e-18 Gy |
| 2 aSv | 2e-18 Gy |
| 5 aSv | 5e-18 Gy |
| 10 aSv | 1e-17 Gy |
| 20 aSv | 2e-17 Gy |
| 50 aSv | 5e-17 Gy |
| 100 aSv | 1e-16 Gy |
Related conversions
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Frequently asked questions
How many Grays are in one Attosievert?
One Attosievert equals 1e-18 Grays.
How do I convert Attosievert to Gray?
Multiply the number of Attosieverts by 1e-18 to get Grays. To go the other way, multiply Grays by 1e+18 (or divide by 1e-18) to get Attosieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Attosievert and Gray, so the result shown is mathematically precise (rounded only for display).
When is Attosievert to Gray 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
Attosievert and Gray are units used in the radiation family of measurements. Attosievert measures equivalent radiation dose (biological risk-weighted dose), while Gray 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 Attosievert = 1e-18 Grays (equivalently 1 Gray = 1e+18 Attosieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.