Pressure
Convert kilogram-force per square centimetre (kgf/cm²) to pound per square inch (psi). Pressure is force per unit area. Process engineers move constantly between SI (kPa, bar) and US (psi) units, and between absolute and gauge.
1 kgf/cm² = 14.22334 psi
To convert kilogram-force per square centimetre to pound per square inch, multiply the kgf/cm² value by 14.22334. To go the other way, divide by 14.22334 (or multiply by 0.07030695).
| kgf/cm² | psi |
|---|---|
| 1 | 14.22334 |
| 2 | 28.44669 |
| 5 | 71.11672 |
| 10 | 142.2334 |
| 25 | 355.5836 |
| 50 | 711.1672 |
| 100 | 1422.334 |
| 250 | 3555.836 |
| 500 | 7111.672 |
| 1000 | 14223.34 |
Line and vessel ratings, pump discharge heads, and relief set points are all specified in pressure units — usually psi or barg in the field and kPa in calculations.
Always track whether a value is absolute or gauge: 0 barg equals about 101.3 kPa absolute, and mixing the two is a common and costly error.
Worked example. A pressure of 10.19716 kgf/cm² is 145.0377 psi.
Multiply the value in kgf/cm² by 14.22334 to get psi. For example, 10 kgf/cm² = 142.2334 psi.
1 kgf/cm² equals 14.22334 psi.
Line and vessel ratings, pump discharge heads, and relief set points are all specified in pressure units — usually psi or barg in the field and kPa in calculations.