The pascal is one newton per square meter.
Pascals to Torrs Converter — Pa to Torr
Convert Pascal (Pa) to Torr (Torr) using the exact conversion factor (1 pascal = 0.0075006168 torr). See the formula, worked examples, conversion table, history, and common uses.
Pascals to Torrs converter
Converter
Scientific Units Converter
Convert SI derived units, scientific notation-friendly units, atomic units, and lab measurements.
Context values
Some unit families need one extra value for a physically accurate result.
A torr is 1/760 standard atmosphere.
Result = input x 1 / 133.3223684.
Pressure units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Pascals to Torrs
Pascal and Torr are both scientific-measurement units, spanning everything from atomic and laboratory scales to astronomical distances — the kind of conversion that comes up constantly in physics, chemistry, and astronomy when a result needs to move between conventions used in different subfields. Pascal is most often used for scientific and engineering pressure measurement worldwide.
Formula
torrs = pascals × 0.00750061682704
This factor comes from each unit's defined relationship to the category's base unit: 1 pascal equals 1 base unit, and 1 torr equals 133.322368421 base units, so dividing one by the other gives the direct pascal-to-torr factor of 0.00750061682704.
Simple example
1 Pa × 0.007500616827 = 0.0075006168 Torr
1 pascal = 0.0075006168 torrs.
Real-world example
10 Pa × 0.007500616827 = 0.0750061683 Torr
10 pascals = 0.0750061683 torrs.
Conversion table
| Pascal (Pa) | Torr (Torr) |
|---|---|
| 0.001 Pa | 0.0000075006 Torr |
| 0.01 Pa | 0.0000750062 Torr |
| 1 Pa | 0.0075006168 Torr |
| 10 Pa | 0.0750061683 Torr |
| 100 Pa | 0.7500616827 Torr |
| 1,000 Pa | 7.500616827 Torr |
Reverse conversion: Torr to Pascal
0.0075006168 Torr × 133.3223684 = 0.9999999964 Pa
0.0075006168 torrs = 0.9999999964 pascals.
pascals = torrs × 133.322368421
For a page dedicated to this direction, see Torr to Pascal.
Understanding the Pascal
Pascal (Pa) measures pressure. The pascal is the SI derived unit of pressure: one newton of force per square meter. It is classified as a SI derived unit.
Where it's used: Standard scientific pressure unit worldwide
Uses of the Pascal today
- Scientific and engineering pressure measurement worldwide
- Meteorology (often as hectopascals, equivalent to millibars)
- Material science (stress and strength, typically in megapascals)
History of the Pascal
The pascal is named after Blaise Pascal, whose 17th-century experiments clarified the physics of fluid pressure and vacuum. It was adopted as the SI derived unit of pressure in 1971, replacing the older, non-coherent CGS pressure units used in much scientific work up to that point.
Historical origin. Pascal was not the invention of a single named person; it developed through the process described above.
Understanding the Torr (Torr)
A torr is 1/760 standard atmosphere.
Pascal — sources
- BIPM SI Brochure — Coherent derived units — Defines the pascal as the SI unit of pressure.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many torrs are in 1 pascal?
1 pascal equals 0.0075006168 torrs, using the exact defined conversion factor rather than an estimate.
How do I convert pascal to torr?
Multiply the pascal value by 0.007500616827. The converter above does this instantly to whatever precision you set.
How do I convert torr back to pascal?
Use the reverse factor: 1 torr equals 133.3223684 pascals. You can also use the swap control in the converter above to flip the direction instantly.
What is a pascal?
Pascal (Pa) measures pressure. The pascal is the SI derived unit of pressure: one newton of force per square meter. It is classified as a SI derived unit.
What is a torr?
Torr (Torr) is a unit of scientific units.
Is the pascal to torr conversion exact?
Yes. Both pascal and torr are defined by fixed standards rather than physical artifacts, so the factor of 0.007500616827 used above is exact to as many digits as you choose to display.
Where is the pascal still used today?
Standard scientific pressure unit worldwide
Why does this category span everything from atomic to astronomical scales?
Scientific work spans an enormous range of physical scales, from atomic distances (measured in angstroms or atomic mass units) to interstellar distances (measured in astronomical units or parsecs), so this category groups SI-derived and scale-specific units that researchers commonly need to convert between within their field.