Kilosievert is 1000 sievert units.
Kilosievert to Femtosievert
Convert Kilosievert (kSv) 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.
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Femtosievert is 1e-15 sievert units.
fSv = kSv × 1e+18
Results update instantly for Kilosievert to Femtosievert conversions.
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Formula
1 Kilosievert = 1e+18 Femtosievert
fSv = kSv × 1e+18
kSv = fSv ÷ 1e+18
Conversion table
| 1 kSv | 1e+18 fSv |
| 2 kSv | 2e+18 fSv |
| 5 kSv | 5e+18 fSv |
| 10 kSv | 1e+19 fSv |
| 20 kSv | 2e+19 fSv |
| 50 kSv | 5e+19 fSv |
| 100 kSv | 1e+20 fSv |
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Frequently asked questions
How many Femtosieverts are in one Kilosievert?
One Kilosievert equals 1e+18 Femtosieverts.
How do I convert Kilosievert to Femtosievert?
Multiply the number of Kilosieverts by 1e+18 to get Femtosieverts. To go the other way, multiply Femtosieverts by 1e-18 (or divide by 1e+18) to get Kilosieverts.
Is this conversion exact?
Yes. This conversion uses the exact defined relationship between Kilosievert and Femtosievert, so the result shown is mathematically precise (rounded only for display).
When is Kilosievert 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
Kilosievert 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 Kilosievert = 1e+18 Femtosieverts (equivalently 1 Femtosievert = 1e-18 Kilosieverts), so results stay accurate for nuclear medicine, radiation safety, health physics, and scientific research.