Picosievert is 1e-12 sievert units.
Picosieverts to Nanosieverts Converter — pSv to nSv
Convert Picosievert (pSv) to Nanosievert (nSv) using the exact conversion factor (1 picosievert = 0.001 nanosievert). See the formula, worked examples, and conversion table.
Picosieverts to Nanosieverts 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.
Nanosievert is 1e-9 sievert units.
Result = input x 1e-12 / 1e-9.
Equivalent Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Picosieverts to Nanosieverts
Picosievert and Nanosievert 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: Picosievert is 1e-12 sievert units, and nanosievert is 1e-9 sievert units.
Formula
nanosieverts = picosieverts × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 picosievert equals 1e-12 base units, and 1 nanosievert equals 1e-9 base units, so dividing one by the other gives the direct picosievert-to-nanosievert factor of 0.001.
Simple example
1 pSv × 0.001 = 0.001 nSv
1 picosievert = 0.001 nanosieverts.
Real-world example
10 pSv × 0.001 = 0.01 nSv
10 picosieverts = 0.01 nanosieverts.
Conversion table
| Picosievert (pSv) | Nanosievert (nSv) |
|---|---|
| 0.001 pSv | 0.000001 nSv |
| 0.01 pSv | 0.00001 nSv |
| 0.1 pSv | 0.0001 nSv |
| 1 pSv | 0.001 nSv |
| 10 pSv | 0.01 nSv |
| 100 pSv | 0.1 nSv |
Reverse conversion: Nanosievert to Picosievert
0.001 nSv × 1000 = 1 pSv
0.001 nanosieverts = 1 picosieverts.
picosieverts = nanosieverts × 1000
For a page dedicated to this direction, see Nanosievert to Picosievert.
Understanding the Picosievert (pSv)
Picosievert is 1e-12 sievert units.
Understanding the Nanosievert (nSv)
Nanosievert is 1e-9 sievert units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many nanosieverts are in 1 picosievert?
1 picosievert equals 0.001 nanosieverts, using the exact defined conversion factor rather than an estimate.
How do I convert picosievert to nanosievert?
Multiply the picosievert value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert nanosievert back to picosievert?
Use the reverse factor: 1 nanosievert equals 1,000 picosieverts. You can also use the swap control in the converter above to flip the direction instantly.
What is a picosievert?
Picosievert (pSv) is a unit of radiation.
What is a nanosievert?
Nanosievert (nSv) is a unit of radiation.
Is the picosievert to nanosievert conversion exact?
Yes. Both picosievert and nanosievert 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.