Convert Pascals to Torr
Convert Pascals to Torr instantly. 1 Pascal (Pa) equals 0.007501 Torr (Torr).
Pascals to Torr conversion table
| Pascals (Pa) | Torr (Torr) |
|---|---|
| 1 Pa | 0.007501 Torr |
| 2 Pa | 0.015 Torr |
| 3 Pa | 0.0225 Torr |
| 5 Pa | 0.0375 Torr |
| 10 Pa | 0.07501 Torr |
| 20 Pa | 0.15 Torr |
| 50 Pa | 0.375 Torr |
| 100 Pa | 0.7501 Torr |
| 500 Pa | 3.7503 Torr |
| 1,000 Pa | 7.5006 Torr |
1 Pascal = 0.007501 Torr · multiply Pascals by 0.007501
About converting Pascals to Torr
Pascals (Pa) and Torr (Torr) are both units of pressure, so converting between them is a single multiplication: multiply your Pascals figure by 0.007501. Ten Pascals comes to 0.07501 Torr, and a hundred works out at 0.7501 Torr.
Rule of thumb: going from Pascals to Torr divides, so the figure always shrinks — it takes about 133.3224 Pascals to make a single Torr. If your answer came out bigger, you have the conversion the wrong way round.
What is a Pascal?
The pascal is the SI unit of pressure: one newton spread over one square metre. It is named after Blaise Pascal, who established that air pressure falls with altitude by having a barometer carried up a mountain. The awkward thing about the unit is its scale — a single pascal is a very small pressure indeed, so honest real-world figures come out enormous, atmospheric pressure alone being about 101,325 of them. That is why hardly anyone works in bare pascals: engineers reach for kilopascals, meteorologists for hectopascals, and industry for the bar.
What is a Torr?
The torr is named after Evangelista Torricelli, who invented the mercury barometer and in the process produced the first sustained vacuum anyone had made. The unit fits that legacy exactly: it is very nearly the pressure of one millimetre of mercury, and it is still the working unit of vacuum technology, where gauges read in torr and in decimal fractions of it. Its most familiar relative is not in a laboratory at all — blood pressure is quoted in millimetres of mercury, essentially the same size, so a reading of 120 over 80 is a pressure measurement in all but name.
To put both in perspective: sea-level air pressure is about 101,325 pascals, while a rough vacuum pump pulls down to about 0.1 torr.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the Torr to Pascals converter, or browse all Pressure converters.
Frequently asked questions
How many Torr are in one Pascal?
There are 0.007501 Torr in one Pascal.
How do I convert Pascals to Torr?
Multiply the number of Pascals by 0.007501. For example, 10 Pascals = 0.07501 Torr.
What is 100 Pascals in Torr?
100 Pascals is equal to 0.7501 Torr.
How do I convert Torr to Pascals?
Multiply the Torr value by 133.3224 (or divide by 0.007501).
Is this Pascals to Torr conversion exact?
The definition is exact — Pascals and Torr are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Pascal?
The pascal is the SI unit of pressure: one newton spread over one square metre. It is named after Blaise Pascal, who established that air pressure falls with altitude by having a barometer carried up a mountain. The awkward thing about the unit is its scale — a single pascal is a very small pressure indeed, so honest real-world figures come out enormous, atmospheric pressure alone being about 101,325 of them. That is why hardly anyone works in bare pascals: engineers reach for kilopascals, meteorologists for hectopascals, and industry for the bar.
What is a Torr?
The torr is named after Evangelista Torricelli, who invented the mercury barometer and in the process produced the first sustained vacuum anyone had made. The unit fits that legacy exactly: it is very nearly the pressure of one millimetre of mercury, and it is still the working unit of vacuum technology, where gauges read in torr and in decimal fractions of it. Its most familiar relative is not in a laboratory at all — blood pressure is quoted in millimetres of mercury, essentially the same size, so a reading of 120 over 80 is a pressure measurement in all but name.