Convert Torr to Pascals
1 torr is 133.322368 Pa. One torr is exactly 133.322368421 pascals.
One torr is 133.32237 pascals. To convert torr to pascals, multiply by 133.32237; to go the other way, divide by 133.32237 or multiply by 0.0075006168. The factor is exact rather than rounded: it follows from NIST Special Publication 811. Exactly one seven-hundred-and-sixtieth of a standard atmosphere.
Factor checked against the defining standard · How we check
- Torr × 133.32237
value * 133.322368421133.322 Pa
1 torr in every pressure unit
| Unit | Value | Exact factor |
|---|---|---|
| pounds per square inch | 0.0193367747 psi | × 0.0193367747046 |
| bars | 0.001333223684 bar | × 0.00133322368421 |
| pascals | 133.3223684 Pa | × 133.322368421 |
| kilopascals | 0.1333223684 kPa | × 0.133322368421 |
| megapascals | 0.0001333223684 MPa | × 0.000133322368421 |
| atmospheres | 0.001315789474 atm | × 0.00131578947368 |
| torr (as entered) | 1 Torr | — |
| inches of mercury | 0.03937006895 inHg | × 0.0393700689499 |
Factors are entered by hand from NIST Special Publication 811 rather than derived from a units library, so the ones that terminate are exact rather than rounded.
How do you convert torr to pascals?
- 1.Take the measurement in torr.
- 2.Multiply by 133.32237 — that is how many pascals fit in one torr.
- 3.To go back the other way, divide by 133.32237, or multiply by 0.0075006168.
Worked example: 25 torr to pascals
- Formula
- Torr × 133.32237 = Pa
- Arithmetic
- 25 × 133.32237 = 3,333.059211 Pa
- Answer
- 25 Torr = 3,333.059211 Pa
The factor is rounded for display; the figure above is computed from the full value.
Torr to pascals conversion table
| Torr | Pascals |
|---|---|
| 1 Torr | 133.322368 Pa |
| 2 Torr | 266.644737 Pa |
| 3 Torr | 399.967105 Pa |
| 4 Torr | 533.289474 Pa |
| 5 Torr | 666.611842 Pa |
| 6 Torr | 799.934211 Pa |
| 7 Torr | 933.256579 Pa |
| 8 Torr | 1,066.578947 Pa |
| 9 Torr | 1,199.901316 Pa |
| 10 Torr | 1,333.223684 Pa |
| 12 Torr | 1,599.868421 Pa |
| 15 Torr | 1,999.835526 Pa |
| 20 Torr | 2,666.447368 Pa |
| 25 Torr | 3,333.059211 Pa |
| 50 Torr | 6,666.118421 Pa |
| 100 Torr | 13,332.236842 Pa |
| 200 Torr | 26,664.473684 Pa |
| 300 Torr | 39,996.710526 Pa |
| 500 Torr | 66,661.184211 Pa |
| 1000 Torr | 133,322.368421 Pa |
| 2000 Torr | 266,644.736842 Pa |
| 5000 Torr | 666,611.842105 Pa |
| 10000 Torr | 1,333,223.68421 Pa |
What is a torr?
Exactly one seven-hundred-and-sixtieth of a standard atmosphere. Within a millionth of a millimetre of mercury, which is what it replaced, and still the unit of vacuum work.
What is a pascal?
The SI unit: one newton spread over one square metre. It is a small pressure — a sheet of paper resting on a table is about one pascal — which is why the kilopascal is what instruments actually read.
How many pascals are in a torr?
One torr is 133.32237 pascals. Going the other way, one pascal is 0.0075006168 torr. Both figures come from the same defined relation rather than from a measurement, which is why they are the same today as they were in 1959.
Every pressure unit here
| Unit | Symbol | One of these is |
|---|---|---|
| Pounds per square inch | psi | 6894.7573 pascal |
| Bars | bar | 100000 pascal |
| Pascals | Pa | the base unit |
| Kilopascals | kPa | 1000 pascal |
| Megapascals | MPa | 1000000 pascal |
| Atmospheres | atm | 101325 pascal |
| Torr | Torr | 133.32237 pascal |
| Inches of mercury | inHg | 3386.389 pascal |
Questions people actually ask
- How many pascals are in a torr?
- 133.32237. The SI unit: one newton spread over one square metre. It is a small pressure — a sheet of paper resting on a table is about one pascal — which is why the kilopascal is what instruments actually read.
- How do I convert pascals back to torr?
- Divide by 133.32237, or multiply by 0.0075006168 — they are the same operation.
Other pressure conversions
Pascals to torr — the same conversion the other way.