In 1 pascals there are 0.007501 torrs. Meanwhile in 1 torrs there are 133.322368 pascals. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Torrs to Pascals calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert pascals (Pa) to torr (Torr), multiply by the fixed pressure ratio:
You can also use the inverse form if you prefer division:
What these units mean
Quick examples
Tip: For most uses, round to the decimal places that match your needed accuracy.
To convert pascals (Pa) to torrs (Torr), divide the pascal value by 133.322368.
Formula: Torr = Pa ÷ 133.322368
1 Pa = 0.0075006168 Torr (about 0.0075 Torr).
1 Torr = 133.322368 Pa.
Use this quick conversion:
Torr = Pa × 0.0075006168
This is the same as dividing by 133.322368.
Multiply torrs by 133.322368 to get pascals.
Formula: Pa = Torr × 133.322368
A torr is based on a fraction of standard atmospheric pressure. One atmosphere equals 101,325 Pa and also equals 760 Torr. Dividing 101,325 by 760 gives 133.322368 Pa per Torr.
They are close and often used as if they match, but they are not exactly the same by strict definition. In most lab and HVAC use, the difference is too small to matter. For high-precision work, use the exact unit your standard calls for.
No. They measure the same thing (pressure) but use different scales.
1 atm = 760 Torr = 101,325 Pa
Here are a few helpful reference points:
Convert kilopascals to pascals first, then to torrs.
Use the same formula. Vacuum levels are often shown in Torr or mTorr.
Example: 1 Pa ≈ 7.5006168 mTorr
Rounding depends on your use. For quick checks, 3 to 4 decimal places is common. For lab work, keep more digits until the final step, then round to match your instrument or report format.
Pa stands for pascal. It is the SI unit of pressure.
1 Pa = 1 newton per square meter (N/m²)
Torr is a pressure unit used often in vacuum work. It is defined as 1/760 of an atmosphere, which links it to both Pa and atm.
For a rough estimate, use:
Torr ≈ Pa ÷ 133
This gets you close, but it won’t match exact results for precise work.
The Calculate Box tool to convert pascals to torrs uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a pascals value in the box and have it instantly converted to torrs.