Millisievert is 0.001 sievert units.
Millisieverts to Picosieverts Converter — mSv to pSv
Convert Millisievert (mSv) to Picosievert (pSv) using the exact conversion factor (1 millisievert = 1,000,000,000 picosievert). See the formula, worked examples, and conversion table.
Millisieverts 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 0.001 / 1e-12.
Equivalent Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Millisieverts to Picosieverts
Millisievert 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: Millisievert is 0.001 sievert units, and picosievert is 1e-12 sievert units.
Formula
picosieverts = millisieverts × 1000000000
This factor comes from each unit's defined relationship to the category's base unit: 1 millisievert equals 0.001 base units, and 1 picosievert equals 1e-12 base units, so dividing one by the other gives the direct millisievert-to-picosievert factor of 1000000000.
Simple example
1 mSv × 1000000000 = 1,000,000,000 pSv
1 millisievert = 1,000,000,000 picosieverts.
Real-world example
10 mSv × 1000000000 = 10,000,000,000 pSv
10 millisieverts = 10,000,000,000 picosieverts.
Conversion table
| Millisievert (mSv) | Picosievert (pSv) |
|---|---|
| 0.001 mSv | 1,000,000 pSv |
| 0.01 mSv | 10,000,000 pSv |
| 0.1 mSv | 100,000,000 pSv |
| 1 mSv | 1,000,000,000 pSv |
| 10 mSv | 10,000,000,000 pSv |
| 100 mSv | 100,000,000,000 pSv |
Reverse conversion: Picosievert to Millisievert
1 pSv × 1e-9 = 1e-9 mSv
1 picosievert = 1e-9 millisieverts.
millisieverts = picosieverts × 1e-9
For a page dedicated to this direction, see Picosievert to Millisievert.
Understanding the Millisievert (mSv)
Millisievert is 0.001 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 millisievert?
1 millisievert equals 1,000,000,000 picosieverts, using the exact defined conversion factor rather than an estimate.
How do I convert millisievert to picosievert?
Multiply the millisievert value by 1000000000. The converter above does this instantly to whatever precision you set.
How do I convert picosievert back to millisievert?
Use the reverse factor: 1 picosievert equals 1e-9 millisieverts. You can also use the swap control in the converter above to flip the direction instantly.
What is a millisievert?
Millisievert (mSv) is a unit of radiation.
What is a picosievert?
Picosievert (pSv) is a unit of radiation.
Is the millisievert to picosievert conversion exact?
Yes. Both millisievert and picosievert are defined by fixed standards rather than physical artifacts, so the factor of 1000000000 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.