Attosievert is 1e-18 sievert units.
Attosievert to Femtosievert
Convert Attosievert (aSv) to Femtosievert (fSv) 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.
Context values
Some unit families need one extra value for a physically accurate result.
Femtosievert is 1e-15 sievert units.
fSv = aSv × 0.001
Results update instantly for Attosievert to Femtosievert conversions.
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Formula
1 Attosievert = 0.001 Femtosievert
fSv = aSv × 0.001
aSv = fSv ÷ 0.001
Conversion table
| 1 aSv | 0.001 fSv |
| 2 aSv | 0.002 fSv |
| 5 aSv | 0.005 fSv |
| 10 aSv | 0.01 fSv |
| 20 aSv | 0.02 fSv |
| 50 aSv | 0.05 fSv |
| 100 aSv | 0.1 fSv |
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Frequently asked questions
How many Femtosieverts are in one Attosievert?
One Attosievert equals 0.001 Femtosieverts.
How do I convert Attosievert to Femtosievert?
Multiply the number of Attosieverts by 0.001 to get Femtosieverts. To go the other way, multiply Femtosieverts 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 Femtosievert, so the result shown is mathematically precise (rounded only for display).
When is Attosievert to Femtosievert 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 Femtosievert are units used in the radiation family of measurements. Both units measure equivalent radiation dose (biological risk-weighted dose). This converter uses the precise relationship 1 Attosievert = 0.001 Femtosieverts (equivalently 1 Femtosievert = 1000 Attosieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.