CalcPairsPSI to kPa Converter (psi to kPa)
30 psi is 206.842719 kPa. A kilopascal is a thousand pascals — the metric pressure unit that appears on tyre sidewalls across Canada, Australia and most of the engineering world. One psi is 6.89475729 kPa exactly (to the digits shown).
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How this conversion works
Many tyre placards print all three scales — psi, bar and kPa — and gauges in Canada and Australia read kilopascals first. Type either side: 220 kPa is 31.91 psi; a 240 kPa sidewall maximum is 34.81 psi.
kPa is also the unit of weather maps in much of the world (sea-level pressure ≈ 101.325 kPa) and of HVAC and engineering specifications, where bar would need decimals and psi would need a conversion anyway. If you want bar instead, the sister page converts psi to bar directly.
The exact formula
kPa = psi × 6.89475729
The pascal is one newton per square metre; the psi is one pound-force per square inch. Their definitions meet at 6.894757293168361… kPa per psi, of which 6.89475729 is the working figure here. The reverse is psi = kPa ÷ 6.89475729.
PSI to Kilopascals conversion table
| PSI (psi) | Kilopascals (kPa) |
|---|---|
| 5 | 34.473786 |
| 10 | 68.947573 |
| 15 | 103.421359 |
| 20 | 137.895146 |
| 25 | 172.368932 |
| 30 | 206.842719 |
| 35 | 241.316505 |
| 40 | 275.790292 |
| 45 | 310.264078 |
| 50 | 344.737864 |
| PSI (psi) | Kilopascals (kPa) |
|---|---|
| 55 | 379.211651 |
| 60 | 413.685437 |
| 65 | 448.159224 |
| 70 | 482.63301 |
| 75 | 517.106797 |
| 80 | 551.580583 |
| 85 | 586.05437 |
| 90 | 620.528156 |
| 95 | 655.001943 |
| 100 | 689.475729 |
| PSI (psi) | Kilopascals (kPa) |
|---|---|
| 110 | 758.423302 |
| 120 | 827.370875 |
| 150 | 1034.213594 |
| 200 | 1378.951458 |
| 250 | 1723.689322 |
| 300 | 2068.427187 |
Frequently asked questions
How many kPa are in 1 psi?
6.89475729 kPa.
What is 32 psi in kPa?
220.642 kPa — which is why so many placards print 220 kPa next to 32 psi.
Which is bigger, a bar or 100 kPa?
They are exactly the same: 1 bar = 100 kPa by definition. The bar survives because its size is convenient, not because it measures anything different.