kPa to PSI Converter
Convert kilopascal to pound per square inch instantly. 1 kPa = 0.1450377377 psi, worked steps and a full reference table.
How to use it
- Type the value in kilopascal — the result updates as you type.
- Use Swap to flip the direction, or change either dropdown to convert between any two units.
- Click the result to copy it. The URL updates too, so you can bookmark or share the exact conversion.
Examples
| 1 kPa | 0.1450377377 psi |
| 5 kPa | 0.7251886887 psi |
| 10 kPa | 1.450377377 psi |
| 100 kPa | 14.50377377 psi |
One kilopascal equals 0.14503774 pound per square inches (psi). To convert kilopascals to pound per square inches, multiply by 0.14503774; to go back the other way, multiply by 6.8947573 instead.
The converter above does it as you type and shows the working underneath, so you can check the arithmetic rather than take the number on trust.
What kilopascals and pound per square inches actually measure
Kilopascal (kPa) — A kilopascal is a thousand pascals. Tyre pressures and weather reporting in metric countries.
Pound per square inch (psi) — Pounds per square inch. Tyre pressures, air compressors and plumbing in the US.
kPa to PSI conversion table
The most common values, worked out in advance. Anything not listed can be typed straight into the converter.
| kPa | psi |
|---|---|
| 1 kPa | 0.14503774 psi |
| 2 kPa | 0.29007548 psi |
| 5 kPa | 0.72518869 psi |
| 10 kPa | 1.4503774 psi |
| 25 kPa | 3.6259434 psi |
| 50 kPa | 7.2518869 psi |
| 100 kPa | 14.503774 psi |
How to convert kilopascals to pound per square inches by hand
Multiply the number of kilopascals by 0.14503774.
For example, 25 kPa × 0.14503774 = 3.6259434 psi.
Going the other way, divide by 0.14503774 — or multiply by 6.8947573, which is the same thing and easier to do in your head.
Everything runs in your browser
There is no server involved in the calculation. The numbers you type never leave your device, nothing is logged, and the page keeps working with no connection once it has loaded. That is not a marketing line — it is simply how the tool is built, because a calculation like this has no reason to touch a network.
Questions people ask
How many psi are in 1 kPa?
1 kPa equals exactly 0.1450377377 psi. Multiply any value in kilopascal by 0.1450377377 to get pound per square inch.
Is anything uploaded to a server?
No. The whole calculation happens in your browser. Nothing is sent anywhere, and the page keeps working offline once loaded.
Last updated 18 August 2026