In 1 torrs there are 133.322368 pascals. Meanwhile in 1 pascals there are 0.007501 torrs. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Pascals to Torrs calculator above to convert any number.
* Values rounded to 6 decimal places for readability
Torr and pascal (Pa) are both units of pressure. Torr is common in lab and vacuum work, while pascals are the SI unit used in science and engineering.
To convert torrs to pascals, use this conversion factor:
Conversion formula (Torr to Pa):
Quick examples:
Tip: Keep extra decimal places if you need more accuracy, then round at the end.
1 torr equals 133.322368421 pascals (Pa).
For quick work, many people round it to 133.322 Pa.
Multiply the pressure value in torr by 133.322368421.
Formula:
Pa = torr × 133.322368421
Divide the pressure value in pascals by 133.322368421.
Formula:
torr = Pa ÷ 133.322368421
They are close but not always the same.
In most lab and HVAC uses, torr and mmHg are treated as equal.
Because 1 atmosphere = 101,325 Pa and 1 torr = 1/760 atm.
So:
1 torr = 101,325 ÷ 760 = 133.322368421 Pa
Here are a few quick reference values:
760 torr equals 101,325 Pa.
That’s because 760 torr = 1 atmosphere.
Rounding depends on your use.
Match your rounding to the precision of your gauge or data.
A pascal is a unit of pressure in the SI system.
1 Pa equals 1 newton per square meter (N/m²). It’s a small unit, so pressures are often shown as kPa (kilopascals).
Torr is common for vacuum pressure and low-pressure systems, such as:
It’s easy to read in ranges where pascals can feel large.
Yes, both can be used as absolute pressure units, as long as the reference is clear.
In vacuum work, values are often absolute. If a spec uses gauge pressure, it should say gauge or use a reference point.
No. The unit conversion is fixed by definition.
Temperature can change the actual pressure in a system, but it doesn’t change how many pascals are in a torr.
The Calculate Box tool to convert torrs to pascals uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a torrs value in the box and have it instantly converted to pascals.