This converter turns pounds per square inch into kilopascals instantly, using the exact factor 1 pound per square inch = 6.894757293 kilopascals. Type any number and the result updates as you go — nothing is sent to a server, so the arithmetic happens entirely in your browser.
The dominant US pressure unit for tyres, plumbing and compressors. The standard tyre-pressure unit in metric countries.
Because the relationship is a simple proportion, one multiplication does the whole job. The table further down gives pre-computed values for the amounts people look up most often, and the result panel also reports the reverse conversion so you can check the figure both ways.
The formula
pounds per square inch- The amount you are converting, measured in pounds per square inch
6.894757293- The exact number of kilopascals in one pound per square inch
kilopascals- The converted result
How it works, step by step
- Enter the number of pounds per square inch you want to convert.
- The value is multiplied by 6.894757293, the exact conversion factor.
- The result is displayed in kilopascals, rounded for readability.
- The unrounded value and the reverse conversion appear underneath so you can verify it.
Worked examples
Converting 5 pounds per square inch
Multiply 5 by 6.8947573. That gives 34.4738 kilopascals. A quick sanity check: one pound per square inch is larger than one kilopascal, so the number should get bigger — and it does.
Converting 72 pounds per square inch
72 × 6.8947573 = 496.4225 kilopascals. Working backwards, 496.4225 ÷ 6.8947573 returns 72 pounds per square inch, which confirms the factor is applied the right way round.
How to read your score
Frequently asked questions
How many kilopascals are in one pound per square inch?
Exactly 6.894757293. Every conversion on this page is that single number multiplied by your input, so the result carries no rounding error beyond what is shown.
What is the formula to convert pounds per square inch to kilopascals?
Kilopascals = pounds per square inch × 6.894757293. To reverse it, divide instead: pounds per square inch = kilopascals ÷ 6.894757293, which is the same as multiplying by 0.1450377377.
Is the pound per square inch bigger than the kilopascal?
Yes. One pound per square inch equals 6.89476 kilopascals, so it is the larger unit.
Why does my answer differ slightly from other psi to kilopascals converters?
Most differences come from rounding the factor too early. This tool keeps full double precision through the calculation and only rounds at the final display step, and it also shows the unrounded value so you can see exactly where any difference appears.
What is a pound per square inch?
The dominant US pressure unit for tyres, plumbing and compressors.
What is a kilopascal?
The standard tyre-pressure unit in metric countries.
Pounds Per Square Inch to kilopascals reference table
| Pounds Per Square Inch | Kilopascals |
|---|---|
| 0.5 psi | 3.4474 kPa |
| 1 psi | 6.8948 kPa |
| 2 psi | 13.7895 kPa |
| 3 psi | 20.6843 kPa |
| 5 psi | 34.4738 kPa |
| 10 psi | 68.9476 kPa |
| 15 psi | 103.4214 kPa |
| 20 psi | 137.8951 kPa |
| 25 psi | 172.3689 kPa |
| 50 psi | 344.7379 kPa |
| 75 psi | 517.1068 kPa |
| 100 psi | 689.4757 kPa |
| 250 psi | 1,723.69 kPa |
| 500 psi | 3,447.38 kPa |
| 1000 psi | 6,894.76 kPa |
Exact factor: 1 pound per square inch = 6.894757293 kilopascals. Values rounded for display.