kPa to psi Converter
Type a value in kilopascals and read the equivalent in psi immediately, with the formula and a table of common values.
How kPa to psi works
Convert kilopascals to psi instantly. 1 kPa = 0.1450377 psi, with a live result and a quick reference table. Everything happens inside this page: the tool reads your input, runs the calculation or conversion locally, and hands the result back to you. Nothing is transmitted, because there is no backend to transmit it to.
That design choice is deliberate. Most free tool sites upload your files to a server, process them there, and quietly keep a copy. Toolcin cannot do that — the site is a set of static files. If your connection dropped the moment the page finished loading, every tool would still work.
The factor
One kPa is 0.1450377377 psi, because one psi is 6.894757 kPa. Going from kilopascals to psi always makes the number smaller.
A 220 kPa tyre pressure is 31.9 psi. A 100 kPa air line is 14.5 psi.
Reference points
Standard atmospheric pressure appears in this range constantly, so it is worth knowing one anchor: 101.325 kPa is 14.696 psi, which is 1 atm.
| kPa | psi |
|---|---|
| 100 | 14.50 |
| 101.3 | 14.70 |
| 220 | 31.91 |
| 600 | 87.02 |
Which gauge am I reading?
Tyre and compressor gauges show gauge pressure — above ambient. Absolute pressure adds one atmosphere, so 220 kPa gauge is about 321 kPa absolute.
If a spec sheet says “psia” it means absolute, and “psig” means gauge. Converting between the two needs that one-atmosphere offset, not just the unit factor.
Good to know
- Works offline once loaded, including on flights and in locked-down networks.
- No file size limit beyond your device's own memory.
- Free to use, with no account and no usage counter.
- Results are produced locally, so they are not logged or shared with anyone.
Questions
How many psi are in one kPa?
Exactly 0.1450377 psi. The conversion multiplies by 0.1450377377.
Can I convert the other way?
Yes — divide by 0.1450377, or use the reverse converter page.
Is kPa the same as mbar?
No — 1 mbar is 0.1 kPa. 1013 mbar is 101.3 kPa.
Why is the result always smaller than the input?
Because a psi is a bigger pressure than a kPa, so fewer of them are needed.
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