Kilopascals to PSI (kPa to psi)
One psi is 6.894757 kPa (NIST SP 811: 1 lbf/in² = 6,894.757 Pa), so to convert kilopascals to psi divide by 6.895, or multiply by 0.145038. 100 kPa is 14.50 psi.
Formula
psi = kPa × 0.145038
Example: 200 kilopascals = 29.0075 psi.
Kilopascals to PSI chart
| kilopascals | psi |
|---|---|
| 100 | 14.5038 |
| 150 | 21.7557 |
| 180 | 26.1068 |
| 200 | 29.0075 |
| 210 | 30.4579 |
| 220 | 31.9083 |
| 230 | 33.3587 |
| 240 | 34.8091 |
| 250 | 36.2594 |
| 260 | 37.7098 |
| 280 | 40.6106 |
| 300 | 43.5113 |
| 350 | 50.7632 |
| 500 | 72.5189 |
| 1,000 | 145.038 |
Good to know
Tire placards outside the US — and many inside the door jamb of imported cars — give pressure in kPa. 220 kPa is 31.9 psi, 240 kPa is 34.8 psi and 250 kPa is 36.3 psi. Like psi on a tire gauge, these are gauge pressures: the amount above the surrounding air.
Standard atmospheric pressure is defined as 101.325 kPa, which is 14.696 psi. Weather reports use hectopascals (1 hPa = 0.1 kPa), so 1013 hPa is 101.3 kPa. For bar, 100 kPa = 1 bar.
Frequently asked questions
How many psi is 1 kPa?
1 kPa is 0.145038 psi.
How many psi is 240 kPa?
240 kPa is 34.81 psi — a common passenger-car tire pressure.
How many kPa is 1 psi?
1 psi is 6.894757 kPa.