Torr to PSI Converter
Pressure · unit-converter
Convert Torr to PSI with a fixed input and output unit, step-by-step formula line, and reference tables. All calculations bridge through pascal with fixed definitions (standard atmosphere = 101,325 Pa; torr and mmHg = atm/760; plus industrial/manometer units like kgf/cm², inHg, inH2O, and mmH2O).
About Torr
The torr is defined as 1/760 of a standard atmosphere (≈133.32236842105263 Pa). It is widely used in vacuum science alongside pascal.
About PSI
Pounds-force per square inch (PSI) is common for tires, hydraulics, and US industrial equipment.
How to convert torr to psi
1 torr equals 0.01933677470462397 psi in this tool (via pascal):
1 torr = (133.32236842105263 Pa ÷ 6894.757293168 Pa) psi = 0.01933677470462397 psi
Each torr carries 133.32236842105263 Pa and each psi 6894.757293168 Pa, so one torr equals 133.32236842105263 ÷ 6894.757293168 psi.
Let p(torr) be pressure in Torr (torr), and p(psi) in PSI (psi). Then:
p(psi) = p(torr) × (133.32236842105263 / 6894.757293168)
Equivalently, divide by how many torr fit into one psi (Pa per psi divided by Pa per torr):
p(psi) = p(torr) ÷ 51.71493257150436
Examples
Example #1: Convert 1 torr to psi
1 torr = 1 torr × (133.32236842105263/6894.757293168) psi = 0.0193367747 psi
1 torr = 1 torr ÷ 51.71493257150436 = 0.0193367747 psi
1 torr × (133.32236842105263/6,894.757293168) = 0.019337 psi
Example #2: Convert 10 torr to psi
10 torr = 10 torr × (133.32236842105263/6894.757293168) psi = 0.193367747 psi
10 torr = 10 torr ÷ 51.71493257150436 = 0.193367747 psi
10 torr × (133.32236842105263/6,894.757293168) = 0.193368 psi
Summary
To convert Torr to PSI, multiply the value in torr by (133.32236842105263 Pa per torr) / (6894.757293168 Pa per psi). Equivalently: value_psi = value_torr × (133.32236842105263 / 6894.757293168). Numerically, 1 torr equals 0.01933677470462397 psi.
Relationship context
Both Torr and PSI are converted by fixed multiples of the pascal. Multiplying by (Pa per torr) ÷ (Pa per psi) gives the same result as passing through pascal, keeping bar, atm, PSI, kPa, hPa, torr, and mmHg consistent on the hub.
Conversion tables
| Torr (torr) | PSI (psi) |
|---|---|
| 0.1 | 0.0019336775 |
| 1 | 0.0193367747 |
| 2 | 0.0386735494 |
| 3 | 0.0580103241 |
| 4 | 0.0773470988 |
| 5 | 0.0966838735 |
| 6 | 0.1160206482 |
| 7 | 0.1353574229 |
| 8 | 0.1546941976 |
| 9 | 0.1740309723 |
| Torr (torr) | PSI (psi) |
|---|---|
| 10 | 0.193367747 |
| 20 | 0.3867354941 |
| 30 | 0.5801032411 |
| 40 | 0.7734709882 |
| 50 | 0.9668387352 |
| 60 | 1.1602064823 |
| 70 | 1.3535742293 |
| 80 | 1.5469419764 |
| 90 | 1.7403097234 |
| 100 | 1.9336774705 |