In 1 millitorr there are 0.133322 pascals. Meanwhile in 1 pascals there are 7.500617 millitorr. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Pascals to Millitorr calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert millitorr (mTorr) to pascals (Pa), multiply by the fixed pressure factor.
Conversion formula:
Pa = mTorr × 0.1333223684
Quick steps:
Example:
500 mTorr × 0.1333223684 = 66.6611842 Pa
This mTorr to Pa conversion works for vacuum pressure, lab readings, and any pressure value given in millitorr.
A millitorr (mTorr) is a unit of pressure. It equals one-thousandth of a torr. People often use mTorr in vacuum work, like lab systems and thin-film tools.
A pascal (Pa) is the SI unit of pressure. It measures force per area, in newtons per square meter (N/m²). Pascals are common in science, weather, and engineering.
Use this fixed relationship:
Multiply mTorr by 0.133322368421.
Example:
Divide pascals by 0.133322368421.
Example:
A torr is based on standard atmosphere pressure. Since 1 atm = 760 Torr and 1 atm = 101,325 Pa, a torr works out to about 133.322 Pa. A millitorr is one-thousandth of that value.
Here are quick reference values (rounded):
Since 760 Torr = 1 atm, it equals 101,325 Pa. Also, 760,000 mTorr = 760 Torr, so it also equals 101,325 Pa.
They are close but not always identical. Torr is defined as 1/760 of an atmosphere. mmHg depends on mercury density and gravity, which can vary by standard. In many everyday uses, people treat torr and mmHg as equal, but high-accuracy work may separate them.
Match your input precision. If your gauge reads 5.0 mTorr, keep about two significant digits in the result. If you need tight control, keep more digits during math, then round at the end.
No. The conversion is a unit change, not a gas-law change. Temperature affects gas behavior, but it doesn't change how mTorr converts to pascals.
mTorr is a unit, not a reference type. It can describe absolute pressure (common in vacuum) or gauge pressure, depending on the sensor and setup. Check whether your reading is referenced to a vacuum or to ambient air.
The Calculate Box tool to convert millitorr to pascals uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a millitorr value in the box and have it instantly converted to pascals.