A torr is 1/760 standard atmosphere.
Torrs to Micropascals Converter — Torr to uPa
Convert Torr (Torr) to Micropascal (uPa) using the exact conversion factor (1 torr = 133,322,368.4 micropascal). See the formula, worked examples, and conversion table.
Torrs to Micropascals 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.
Micropascal is 0.000001 pascal units.
Result = input x 133.3223684 / 1e-6.
Stress Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Torrs to Micropascals
Torr and Micropascal 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 micropascal is 0.000001 pascal units.
Formula
micropascals = torrs × 133322368.421
This factor comes from each unit's defined relationship to the category's base unit: 1 torr equals 133.322368421 base units, and 1 micropascal equals 0.000001 base units, so dividing one by the other gives the direct torr-to-micropascal factor of 133322368.421.
Simple example
1 Torr × 133322368.4 = 133,322,368.4 uPa
1 torr = 133,322,368.4 micropascals.
Real-world example
100 Torr × 133322368.4 = 13,332,236,840 uPa
100 torrs = 13,332,236,840 micropascals.
Conversion table
| Torr (Torr) | Micropascal (uPa) |
|---|---|
| 1 Torr | 133,322,368.4 uPa |
| 10 Torr | 1,333,223,684 uPa |
| 50 Torr | 6,666,118,421 uPa |
| 100 Torr | 13,332,236,840 uPa |
| 500 Torr | 66,661,184,210 uPa |
| 1,000 Torr | 133,322,368,400 uPa |
Reverse conversion: Micropascal to Torr
1 uPa × 7.500617e-9 = 7.500617e-9 Torr
1 micropascal = 7.500617e-9 torrs.
torrs = micropascals × 7.500617e-9
For a page dedicated to this direction, see Micropascal to Torr.
Understanding the Torr (Torr)
A torr is 1/760 standard atmosphere.
Understanding the Micropascal (uPa)
Micropascal is 0.000001 pascal units.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many micropascals are in 1 torr?
1 torr equals 133,322,368.4 micropascals, using the exact defined conversion factor rather than an estimate.
How do I convert torr to micropascal?
Multiply the torr value by 133322368.4. The converter above does this instantly to whatever precision you set.
How do I convert micropascal back to torr?
Use the reverse factor: 1 micropascal equals 7.500617e-9 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 micropascal?
Micropascal (uPa) is a unit of engineering.
Is the torr to micropascal conversion exact?
Yes. Both torr and micropascal are defined by fixed standards rather than physical artifacts, so the factor of 133322368.4 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.