Terasievert is 1000000000000 sievert units.
Terasieverts to Petasieverts Converter — TSv to PSv
Convert Terasievert (TSv) to Petasievert (PSv) using the exact conversion factor (1 terasievert = 0.001 petasievert). See the formula, worked examples, and conversion table.
Terasieverts to Petasieverts 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.
Petasievert is 1000000000000000 sievert units.
Result = input x 1e+12 / 1e+15.
Equivalent Dose units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Terasieverts to Petasieverts
Terasievert and Petasievert 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: Terasievert is 1000000000000 sievert units, and petasievert is 1000000000000000 sievert units.
Formula
petasieverts = terasieverts × 0.001
This factor comes from each unit's defined relationship to the category's base unit: 1 terasievert equals 1e+12 base units, and 1 petasievert equals 1e+15 base units, so dividing one by the other gives the direct terasievert-to-petasievert factor of 0.001.
Simple example
1 TSv × 0.001 = 0.001 PSv
1 terasievert = 0.001 petasieverts.
Real-world example
10 TSv × 0.001 = 0.01 PSv
10 terasieverts = 0.01 petasieverts.
Conversion table
| Terasievert (TSv) | Petasievert (PSv) |
|---|---|
| 0.001 TSv | 0.000001 PSv |
| 0.01 TSv | 0.00001 PSv |
| 0.1 TSv | 0.0001 PSv |
| 1 TSv | 0.001 PSv |
| 10 TSv | 0.01 PSv |
| 100 TSv | 0.1 PSv |
Reverse conversion: Petasievert to Terasievert
0.001 PSv × 1000 = 1 TSv
0.001 petasieverts = 1 terasievert.
terasieverts = petasieverts × 1000
For a page dedicated to this direction, see Petasievert to Terasievert.
Understanding the Terasievert (TSv)
Terasievert is 1000000000000 sievert units.
Understanding the Petasievert (PSv)
Petasievert is 1000000000000000 sievert units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many petasieverts are in 1 terasievert?
1 terasievert equals 0.001 petasieverts, using the exact defined conversion factor rather than an estimate.
How do I convert terasievert to petasievert?
Multiply the terasievert value by 0.001. The converter above does this instantly to whatever precision you set.
How do I convert petasievert back to terasievert?
Use the reverse factor: 1 petasievert equals 1,000 terasieverts. You can also use the swap control in the converter above to flip the direction instantly.
What is a terasievert?
Terasievert (TSv) is a unit of radiation.
What is a petasievert?
Petasievert (PSv) is a unit of radiation.
Is the terasievert to petasievert conversion exact?
Yes. Both terasievert and petasievert 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.