A torr is 1/760 standard atmosphere.
Torrs to Millipascals Converter — Torr to mPa
Convert Torr (Torr) to Millipascal (mPa) using the exact conversion factor (1 torr = 133,322.3684 millipascal). See the formula, worked examples, and conversion table.
Torrs to Millipascals converter
Converter
Engineering Converter
Convert common stress, force, torque, power, and energy units used in engineering.
Context values
Some unit families need one extra value for a physically accurate result.
Millipascal is 0.001 pascal units.
Result = input x 133.3223684 / 0.001.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Torrs to Millipascals
Torr and Millipascal both measure a quantity used in structural or mechanical engineering — commonly stress, pressure, force, torque, power, or energy — where converting between the unit conventions used in different regions, industries, or equipment specifications is a routine part of design work. Specifically: A torr is 1/760 standard atmosphere, and millipascal is 0.001 pascal units.
Formula
millipascals = torrs × 133322.368421
This factor comes from each unit's defined relationship to the category's base unit: 1 torr equals 133.322368421 base units, and 1 millipascal equals 0.001 base units, so dividing one by the other gives the direct torr-to-millipascal factor of 133322.368421.
Simple example
1 Torr × 133322.3684 = 133,322.3684 mPa
1 torr = 133,322.3684 millipascals.
Real-world example
100 Torr × 133322.3684 = 13,332,236.84 mPa
100 torrs = 13,332,236.84 millipascals.
Conversion table
| Torr (Torr) | Millipascal (mPa) |
|---|---|
| 1 Torr | 133,322.3684 mPa |
| 10 Torr | 1,333,223.684 mPa |
| 50 Torr | 6,666,118.421 mPa |
| 100 Torr | 13,332,236.84 mPa |
| 500 Torr | 66,661,184.21 mPa |
| 1,000 Torr | 133,322,368.4 mPa |
Reverse conversion: Millipascal to Torr
1 mPa × 0.000007500616827 = 0.0000075006 Torr
1 millipascal = 0.0000075006 torrs.
torrs = millipascals × 0.00000750061682704
For a page dedicated to this direction, see Millipascal to Torr.
Understanding the Torr (Torr)
A torr is 1/760 standard atmosphere.
Understanding the Millipascal (mPa)
Millipascal is 0.001 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many millipascals are in 1 torr?
1 torr equals 133,322.3684 millipascals, using the exact defined conversion factor rather than an estimate.
How do I convert torr to millipascal?
Multiply the torr value by 133322.3684. The converter above does this instantly to whatever precision you set.
How do I convert millipascal back to torr?
Use the reverse factor: 1 millipascal equals 0.0000075006 torrs. You can also use the swap control in the converter above to flip the direction instantly.
What is a torr?
Torr (Torr) is a unit of engineering.
What is a millipascal?
Millipascal (mPa) is a unit of engineering.
Is the torr to millipascal conversion exact?
Yes. Both torr and millipascal are defined by fixed standards rather than physical artifacts, so the factor of 133322.3684 used above is exact to as many digits as you choose to display.
Why do engineering unit conventions vary so much by region and industry?
Pressure, force, and stress can be expressed in metric (pascal, newton), US customary (psi, pound-force), or older and industry-specific units (atmosphere, torr, kip) depending on the country, industry, and even the equipment manufacturer, which is why engineers routinely need to convert between them when working across specs from different sources.