pound-force per square inch to torr
Convert pound-force per square inch (psi) to torr (Torr). Use an editable pressure converter, conversion formula, and reference table.
1 psi = 51.71493257 Torr
Conversion formula
One pound-force per square inch equals 51.71493257 torr. Multiply your value in pound-force per square inch by this factor to get torr. For the reverse conversion, divide by the same factor.
Worked example
To convert 5 pound-force per square inch:5 × 51.71493257 = 258.5746629 Torr
Conversion table
| pound-force per square inch (psi) | torr (Torr) |
|---|---|
| 0.01 | 0.5171493257 |
| 0.1 | 5.171493257 |
| 1 | 51.71493257 |
| 2 | 103.4298651 |
| 5 | 258.5746629 |
| 10 | 517.1493257 |
| 25 | 1,292.873314 |
| 50 | 2,585.746629 |
| 100 | 5,171.493257 |
| 1000 | 51,714.93257 |
About these measurements
Pressure is force per unit of area.
The base reference used here is the pascal. One pound-force per square inch is 6,894.757293 base units; one torr is 133.3223684 base units.
Important distinctions
Gauge and absolute pressures must not be mixed. This converts units without changing the reference pressure.
Precision
The converter uses stored conversion factors and floating-point arithmetic. Results display up to ten significant digits, switching to scientific notation for very small or large values. Keep the precision of your original measurement when reporting results.
Common questions
How do I convert psi to Torr?
Multiply the quantity in psi by 51.71493257. You can also type the value into the converter above.
Can I reverse the conversion?
Yes. Use the swap button or open the torr to pound-force per square inch converter.
Reference
NIST Guide to the SI — conversion factors and prefix conventions. SI prefixes scale units by powers of ten; the dimension-specific notes above describe the assumptions used on this page.
