Pascals to torr
Type a value in pascals to see it in torr straight away, or type in the second box to convert back.
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Processing and privacy: The result is calculated inside your browser and your data is not sent to any server.
How to use it
- Type the value in the pascals box.
- Read the result in torr as you type, and pick the precision you need.
- Swap the direction to convert back, or copy the result.
How it is calculated
Torr = Pa × 0.007500616827
Multiply the value in pascals by 0.007500616827 to get torr.
Example
To convert 25 Pa to torr: 25 × 0.007500616827 = 0.187515 Torr.
Conversion table
| Pascals (Pa) | Torr (Torr) |
|---|---|
| 1 | 0.00750062 |
| 2 | 0.0150012 |
| 3 | 0.0225019 |
| 5 | 0.0375031 |
| 10 | 0.0750062 |
| 20 | 0.150012 |
| 25 | 0.187515 |
| 50 | 0.375031 |
| 100 | 0.750062 |
| 250 | 1.87515 |
| 500 | 3.75031 |
| 1,000 | 7.50062 |
About the units
- Pascal
- The SI unit of pressure, equal to a force of one newton acting on one square meter.
- Torr
- Exactly 1/760 of a standard atmosphere, used in vacuum work. It is very close to, but not the same as, one millimeter of mercury.
Limits and caveats
- Results are rounded for display and computed with the browser's floating point precision (about 15 significant digits).
- Both unit factors are exact by their official definitions.
Questions about this tool
How many torr are in one pascal?
1 Pa = 0.00750062 Torr exactly.
How do I convert pascals to torr?
Use Torr = Pa × 0.007500616827. For example, 25 Pa = 0.187515 Torr.
How many pascals are in one torr?
1 Torr = 133.322 Pa.
What is the difference between gauge and absolute pressure?
Gauge pressure is measured from the surrounding air pressure, while absolute pressure starts from a perfect vacuum. These converters change the unit only, so a gauge reading stays a gauge reading.
Are torr and mmHg the same?
Almost. One torr is 101325/760 Pa, about 133.322368 Pa, and one conventional mmHg is 133.322387 Pa, a difference of less than one part per million. For everyday use you can treat them as equal.