Pressure
Convert pound per square inch (psi) to kilogram-force per square centimetre (kgf/cm²). Pressure is force per unit area. Process engineers move constantly between SI (kPa, bar) and US (psi) units, and between absolute and gauge.
1 psi = 0.07030695 kgf/cm²
To convert pound per square inch to kilogram-force per square centimetre, multiply the psi value by 0.07030695. To go the other way, divide by 0.07030695 (or multiply by 14.22334).
| psi | kgf/cm² |
|---|---|
| 1 | 0.07030695 |
| 2 | 0.1406139 |
| 5 | 0.3515348 |
| 10 | 0.7030695 |
| 25 | 1.757674 |
| 50 | 3.515348 |
| 100 | 7.030695 |
| 250 | 17.57674 |
| 500 | 35.15348 |
| 1000 | 70.30695 |
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 145.0377 psi is 10.19716 kgf/cm².
Multiply the value in psi by 0.07030695 to get kgf/cm². For example, 10 psi = 0.7030695 kgf/cm².
1 psi equals 0.07030695 kgf/cm².
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.