Micropascal is 0.000001 pascal units.
Micropascals to Torrs Converter — uPa to Torr
Convert Micropascal (uPa) to Torr (Torr) using the exact conversion factor (1 micropascal = 7.500617e-9 torr). See the formula, worked examples, and conversion table.
Micropascals to Torrs converter
Converter
Pressure Converter
Convert pascals, bars, PSI, atmospheres, mercury columns, water columns, and engineering pressure units.
Context values
Some unit families need one extra value for a physically accurate result.
A torr is 1/760 standard atmosphere.
Result = input x 1e-6 / 133.3223684.
Pressure uses the pascal as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Micropascals to Torrs
Micropascal and Torr both show up on pressure gauges — psi is standard on US tire and tool specifications, while bar is the everyday pressure unit across most of the rest of the world. Specifically: Micropascal is 0.000001 pascal units, and a torr is 1/760 standard atmosphere.
Formula
torrs = micropascals × 7.500617e-9
This factor comes from each unit's defined relationship to the category's base unit: 1 micropascal equals 0.000001 base units, and 1 torr equals 133.322368421 base units, so dividing one by the other gives the direct micropascal-to-torr factor of 7.500617e-9.
Simple example
1 uPa × 7.500617e-9 = 7.500617e-9 Torr
1 micropascal = 7.500617e-9 torrs.
Real-world example
35 uPa × 7.500617e-9 = 2.625216e-7 Torr
35 micropascals = 2.625216e-7 torrs.
Conversion table
| Micropascal (uPa) | Torr (Torr) |
|---|---|
| 1 uPa | 7.500617e-9 Torr |
| 5 uPa | 3.750308e-8 Torr |
| 10 uPa | 7.500617e-8 Torr |
| 25 uPa | 1.875154e-7 Torr |
| 50 uPa | 3.750308e-7 Torr |
| 100 uPa | 7.500617e-7 Torr |
Reverse conversion: Torr to Micropascal
7.500617e-9 Torr × 133322368.4 = 1.000000023 uPa
7.500617e-9 torrs = 1.000000023 micropascals.
micropascals = torrs × 133322368.421
For a page dedicated to this direction, see Torr to Micropascal.
Understanding the Micropascal (uPa)
Micropascal is 0.000001 pascal units.
Understanding the Torr (Torr)
A torr is 1/760 standard atmosphere.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many torrs are in 1 micropascal?
1 micropascal equals 7.500617e-9 torrs, using the exact defined conversion factor rather than an estimate.
How do I convert micropascal to torr?
Multiply the micropascal value by 7.500617e-9. The converter above does this instantly to whatever precision you set.
How do I convert torr back to micropascal?
Use the reverse factor: 1 torr equals 133,322,368.4 micropascals. You can also use the swap control in the converter above to flip the direction instantly.
What is a micropascal?
Micropascal (uPa) is a unit of pressure.
What is a torr?
Torr (Torr) is a unit of pressure.
Is the micropascal to torr conversion exact?
Yes. Both micropascal and torr are defined by fixed standards rather than physical artifacts, so the factor of 7.500617e-9 used above is exact to as many digits as you choose to display.