Centisievert is 0.01 sievert units.
Centisieverts to Femtosieverts Converter — cSv to fSv
Convert Centisievert (cSv) to Femtosievert (fSv) using the exact conversion factor (1 centisievert = 1e+13 femtosievert). See the formula, worked examples, and conversion table.
Centisieverts to Femtosieverts converter
Converter
Radiation Converter
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.
Result = input x 0.01 / 1e-15.
Equivalent Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Centisieverts to Femtosieverts
Centisievert and Femtosievert both belong to the radiation-measurement family, though radiation quantities fall into genuinely distinct categories: absorbed dose (gray, rad) measures energy deposited in matter, equivalent dose (sievert, rem) weights that for biological harm, and activity (becquerel, curie) measures how often a radioactive source decays — this page only converts between units of the same kind. Specifically: Centisievert is 0.01 sievert units, and femtosievert is 1e-15 sievert units.
Formula
femtosieverts = centisieverts × 1e+13
This factor comes from each unit's defined relationship to the category's base unit: 1 centisievert equals 0.01 base units, and 1 femtosievert equals 1e-15 base units, so dividing one by the other gives the direct centisievert-to-femtosievert factor of 1e+13.
Simple example
1 cSv × 1e+13 = 1e+13 fSv
1 centisievert = 1e+13 femtosieverts.
Real-world example
10 cSv × 1e+13 = 1e+14 fSv
10 centisieverts = 1e+14 femtosieverts.
Conversion table
| Centisievert (cSv) | Femtosievert (fSv) |
|---|---|
| 0.001 cSv | 10,000,000,000 fSv |
| 0.01 cSv | 100,000,000,000 fSv |
| 0.1 cSv | 1e+12 fSv |
| 1 cSv | 1e+13 fSv |
| 10 cSv | 1e+14 fSv |
| 100 cSv | 1e+15 fSv |
Reverse conversion: Femtosievert to Centisievert
1e+13 fSv × 1e-13 = 1 cSv
1e+13 femtosieverts = 1 centisievert.
centisieverts = femtosieverts × 1e-13
For a page dedicated to this direction, see Femtosievert to Centisievert.
Understanding the Centisievert (cSv)
Centisievert is 0.01 sievert units.
Understanding the Femtosievert (fSv)
Femtosievert is 1e-15 sievert units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many femtosieverts are in 1 centisievert?
1 centisievert equals 1e+13 femtosieverts, using the exact defined conversion factor rather than an estimate.
How do I convert centisievert to femtosievert?
Multiply the centisievert value by 1e+13. The converter above does this instantly to whatever precision you set.
How do I convert femtosievert back to centisievert?
Use the reverse factor: 1 femtosievert equals 1e-13 centisieverts. You can also use the swap control in the converter above to flip the direction instantly.
What is a centisievert?
Centisievert (cSv) is a unit of radiation.
What is a femtosievert?
Femtosievert (fSv) is a unit of radiation.
Is the centisievert to femtosievert conversion exact?
Yes. Both centisievert and femtosievert are defined by fixed standards rather than physical artifacts, so the factor of 1e+13 used above is exact to as many digits as you choose to display.
What's the difference between absorbed dose, equivalent dose, and activity?
Absorbed dose (gray, rad) measures the energy radiation deposits in matter. Equivalent dose (sievert, rem) adjusts that figure for how harmful different types of radiation are to biological tissue. Activity (becquerel, curie) measures how often a radioactive source decays, independent of how much dose a person actually receives from it.