Convert Kilopascals to PSI
Convert Kilopascals to PSI instantly. 1 Kilopascal (kPa) equals 0.145 PSI (psi).
Kilopascals to PSI conversion table
| Kilopascals (kPa) | PSI (psi) |
|---|---|
| 1 kPa | 0.145 psi |
| 2 kPa | 0.2901 psi |
| 3 kPa | 0.4351 psi |
| 5 kPa | 0.7252 psi |
| 10 kPa | 1.4504 psi |
| 20 kPa | 2.9008 psi |
| 50 kPa | 7.2519 psi |
| 100 kPa | 14.5038 psi |
| 500 kPa | 72.5189 psi |
| 1,000 kPa | 145.0377 psi |
1 Kilopascal = 0.145 PSI · multiply Kilopascals by 0.145
About converting Kilopascals to PSI
Kilopascals (kPa) and PSI (psi) are both units of pressure, so converting between them is a single multiplication: multiply your Kilopascals figure by 0.145. Ten Kilopascals comes to 1.4504 PSI, and a hundred works out at 14.5038 PSI.
Rule of thumb: going from Kilopascals to PSI divides, so the figure always shrinks — it takes about 6.8948 Kilopascals to make a single PSI. If your answer came out bigger, you have the conversion the wrong way round.
What is a Kilopascal?
The kilopascal is what the pascal becomes once it is scaled to human problems — a thousand of them, and suddenly the numbers are readable. It is the everyday metric pressure unit across much of the world: tyre pressures in Canada, Australia and New Zealand are posted in kPa, as are the ratings on hydraulics, refrigeration and engineering specifications. Its close relative the hectopascal, a hundred pascals, is what weather services use for air pressure — chosen because it is exactly the size of the millibar forecasters used before it, so every published chart stayed valid.
What is a PSI?
Pounds per square inch is the pressure unit Americans actually meet: on the gauge at the filling-station air pump, on compressors, on hydraulic equipment, and on the sidewall of every tyre sold in the country. It survives in British tyre pressures too, despite nearly everything else there having gone metric. Structurally it is exactly what the name says — a pound-force resting on a square inch — and that heritage is also its weakness, because it inherits the pound-force and with it the old confusion between pounds as weight and pounds as mass.
To put both in perspective: a car tyre is inflated to roughly 220 kilopascals, while a car tyre is usually inflated to about 32 psi.
The converter above updates as you type, and the table lists common values for quick reference. Need the opposite direction? Use the PSI to Kilopascals converter, or browse all Pressure converters.
Frequently asked questions
How many PSI are in one Kilopascal?
There are 0.145 PSI in one Kilopascal.
How do I convert Kilopascals to PSI?
Multiply the number of Kilopascals by 0.145. For example, 10 Kilopascals = 1.4504 PSI.
What is 100 Kilopascals in PSI?
100 Kilopascals is equal to 14.5038 PSI.
How do I convert PSI to Kilopascals?
Multiply the PSI value by 6.8948 (or divide by 0.145).
Is this Kilopascals to PSI conversion exact?
The definition is exact — Kilopascals and PSI are both fixed against the same base by international agreement — but the decimal shown here is rounded for readability, because the true ratio does not terminate. For engineering or scientific work, carry more decimal places than this page displays.
What is a Kilopascal?
The kilopascal is what the pascal becomes once it is scaled to human problems — a thousand of them, and suddenly the numbers are readable. It is the everyday metric pressure unit across much of the world: tyre pressures in Canada, Australia and New Zealand are posted in kPa, as are the ratings on hydraulics, refrigeration and engineering specifications. Its close relative the hectopascal, a hundred pascals, is what weather services use for air pressure — chosen because it is exactly the size of the millibar forecasters used before it, so every published chart stayed valid.
What is a PSI?
Pounds per square inch is the pressure unit Americans actually meet: on the gauge at the filling-station air pump, on compressors, on hydraulic equipment, and on the sidewall of every tyre sold in the country. It survives in British tyre pressures too, despite nearly everything else there having gone metric. Structurally it is exactly what the name says — a pound-force resting on a square inch — and that heritage is also its weakness, because it inherits the pound-force and with it the old confusion between pounds as weight and pounds as mass.