Attosievert is 1e-18 sievert units.
Attosievert to Femtogray
Convert Attosievert (aSv) to Femtogray (fGy) 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.
Femtogray is 1e-15 gray units.
fGy = aSv × 0.001
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Formula
1 Attosievert = 0.001 Femtogray
fGy = aSv × 0.001
aSv = fGy ÷ 0.001
Conversion table
| 1 aSv | 0.001 fGy |
| 2 aSv | 0.002 fGy |
| 5 aSv | 0.005 fGy |
| 10 aSv | 0.01 fGy |
| 20 aSv | 0.02 fGy |
| 50 aSv | 0.05 fGy |
| 100 aSv | 0.1 fGy |
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Frequently asked questions
How many Femtograys are in one Attosievert?
One Attosievert equals 0.001 Femtograys.
How do I convert Attosievert to Femtogray?
Multiply the number of Attosieverts by 0.001 to get Femtograys. To go the other way, multiply Femtograys by 1000 (or divide by 0.001) to get Attosieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Attosievert and Femtogray, so the result shown is mathematically precise (rounded only for display).
When is Attosievert to Femtogray 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 Femtogray are units used in the radiation family of measurements. Attosievert measures equivalent radiation dose (biological risk-weighted dose), while Femtogray 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 = 0.001 Femtograys (equivalently 1 Femtogray = 1000 Attosieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.