Convert Torr to psi
1 torr equals 0.0193367747 psi.
1 Torr = 0.0193367747 psi
Type in either box. Scientific notation works: 1.5e-3.
Converting a list? Use the bulk torr to psi converter to paste a column from Excel.
How to Convert Torr to psi
- 1 Torr = 0.0193367747 psi
- 1 psi = 51.71493257 Torr
- Example: convert 15 Torr to psi: 15 Torr = 15 × 0.0193367747 psi = 0.2900516206 psi
Formula
psi = Torr × 0.01933677470462
or psi = Torr ÷ 51.71493257151
Derivation from SI units:
- 1 Torr = 101325/760 Pa = 133.3223684 Pa (1/760 of a standard atmosphere)
- 1 psi = 1 lbf/in² = (0.45359237 kg × 9.80665 m/s²) ÷ (0.0254 m)² = 6894.757293168 Pa
- 1 Torr = 133.3223684211 Pa ÷ 6894.757293168 Pa per psi = 0.01933677470462 psi
Both units are defined exactly, so the factor is exact. Torr definition: torr; psi definition: psi.
Worked examples
- A reading of 0.1 Torr converts to 0.00193367747 psi.
0.1 Torr × 0.0193367747 = 0.00193367747 psi - A value of 100 Torr is 1.93367747 psi.
100 Torr × 0.0193367747 = 1.93367747 psi
Torr to psi conversion table
| Torr | psi |
|---|---|
| 0.000001 Torr | 1.93367747 × 10⁻⁸ psi |
| 0.00001 Torr | 1.93367747 × 10⁻⁷ psi |
| 0.0001 Torr | 0.00000193367747 psi |
| 0.001 Torr | 0.0000193367747 psi |
| 0.01 Torr | 0.000193367747 psi |
| 0.1 Torr | 0.00193367747 psi |
| 0.5 Torr | 0.009668387352 psi |
| 1 Torr | 0.0193367747 psi |
| 5 Torr | 0.09668387352 psi |
| 10 Torr | 0.193367747 psi |
| 50 Torr | 0.9668387352 psi |
| 100 Torr | 1.93367747 psi |
| 250 Torr | 4.834193676 psi |
| 500 Torr | 9.668387352 psi |
| 750 Torr | 14.50258103 psi |
| 760 Torr | 14.69594878 psi |
| 1000 Torr | 19.3367747 psi |
Where it's used
Torr are used for vacuum technology and vacuum gauges, while psi appear in tyre pressure in the United States (about 30–35 psi for cars). Both measure pressure, stress and differential pressure (force per unit area), so the conversion is a fixed factor.
Torr to other pressure units
| Conversion | 1 Torr equals |
|---|---|
| torr to pascal | 133.3223684 Pa |
| torr to kilopascal | 0.1333223684 kPa |
| torr to megapascal | 0.0001333223684 MPa |
| torr to psi | 0.0193367747 psi |
| torr to bar | 0.001333223684 bar |
| torr to millibar | 1.333223684 mbar |
| torr to decibar | 0.01333223684 dbar |
| torr to millimeter of mercury | 0.9999998575 mmHg |
| torr to millimeter of water | 13.59509806 mmH₂O |
| torr to centimeter of water | 1.359509806 cmH₂O |
| torr to inch of water | 0.5352400812 inH₂O |
| torr to inch of water (60 °F) | 0.5357754719 inH₂O (60 °F) |
| torr to inch of mercury | 0.03937007313 inHg |
| torr to atmosphere | 0.001315789474 atm |
| torr to barye | 1333.223684 Ba |
Frequently asked questions
How many psi are in 1 torr?
1 Torr = 0.0193367747 psi.
How do I convert torr to psi?
Multiply the value in Torr by 0.0193367747, or divide it by 51.71493257. For example, 15 Torr × 0.0193367747 = 0.2900516206 psi.
Is the Torr to psi conversion exact?
Yes. Both units are defined exactly, so the ratio is exact; its decimal form does not terminate and is shown here to 10 significant figures (more with the precision selector).
Sources
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "torr (Torr)".
- Guide for the Use of the International System of Units (SI), NIST Special Publication 811, 2008 Edition, National Institute of Standards and Technology , Appendix B.8, "pound-force per square inch (psi)".
Last reviewed: . Factors are stored exactly and computed with 50-digit decimal arithmetic. See how we verify conversion factors.
Cite this page
APA
Scientific Converters. (2026, October 15). Convert Torr to psi. Retrieved October 17, 2026, from https://scientificconverters.com/pressure/torr-to-psi/
IEEE
Scientific Converters, "Convert Torr to psi," scientificconverters.com. Accessed: Oct. 17, 2026. [Online]. Available: https://scientificconverters.com/pressure/torr-to-psi/