Femtosievert is 1e-15 sievert units.
Femtosieverts to Picosieverts Converter — fSv to pSv
Convert Femtosievert (fSv) to Picosievert (pSv) using the exact conversion factor (1 femtosievert = 0.001 picosievert). See the formula, worked examples, and conversion table.
Femtosieverts to Picosieverts 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.
Picosievert is 1e-12 sievert units.
Result = input x 1e-15 / 1e-12.
Equivalent Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Femtosieverts to Picosieverts
Femtosievert and Picosievert 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: Femtosievert is 1e-15 sievert units, and picosievert is 1e-12 sievert units.
Formula
picosieverts = femtosieverts × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 femtosievert equals 1e-15 base units, and 1 picosievert equals 1e-12 base units, so dividing one by the other gives the direct femtosievert-to-picosievert factor of 0.001.
Simple example
1 fSv × 0.001 = 0.001 pSv
1 femtosievert = 0.001 picosieverts.
Real-world example
10 fSv × 0.001 = 0.01 pSv
10 femtosieverts = 0.01 picosieverts.
Conversion table
| Femtosievert (fSv) | Picosievert (pSv) |
|---|---|
| 0.001 fSv | 0.000001 pSv |
| 0.01 fSv | 0.00001 pSv |
| 0.1 fSv | 0.0001 pSv |
| 1 fSv | 0.001 pSv |
| 10 fSv | 0.01 pSv |
| 100 fSv | 0.1 pSv |
Reverse conversion: Picosievert to Femtosievert
0.001 pSv × 1000 = 1 fSv
0.001 picosieverts = 1 femtosievert.
femtosieverts = picosieverts × 1000
For a page dedicated to this direction, see Picosievert to Femtosievert.
Understanding the Femtosievert (fSv)
Femtosievert is 1e-15 sievert units.
Understanding the Picosievert (pSv)
Picosievert is 1e-12 sievert units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many picosieverts are in 1 femtosievert?
1 femtosievert equals 0.001 picosieverts, using the exact defined conversion factor rather than an estimate.
How do I convert femtosievert to picosievert?
Multiply the femtosievert value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert picosievert back to femtosievert?
Use the reverse factor: 1 picosievert equals 1,000 femtosieverts. You can also use the swap control in the converter above to flip the direction instantly.
What is a femtosievert?
Femtosievert (fSv) is a unit of radiation.
What is a picosievert?
Picosievert (pSv) is a unit of radiation.
Is the femtosievert to picosievert conversion exact?
Yes. Both femtosievert and picosievert are defined by fixed standards rather than physical artifacts, so the factor of 0.001 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.