Kilopascals and PSI both have exact modern definitions, so this conversion is precise in both directions.
How it works
Multiplying kPa by 0.14503773773 gives psi; dividing psi by that same factor gives kPa back.
What this does not include
This does not include bar as a unit — for bar-to-psi conversions specifically, use this site’s dedicated bar to psi calculator instead.
How to use this calculator
- Enter a value in either kPa or psi — the other field fills in automatically.
Frequently asked questions
Where is kPa to psi conversion commonly needed?
Comparing tire pressure specs, hydraulic system ratings, or weather barometric pressure between metric and imperial units.
Is the conversion factor exact?
Yes — both kPa and psi trace back to the exact SI pascal definition, so the conversion factor used here isn’t a rounded approximation.
Is this the same constant used elsewhere on this site?
Yes — the same exact psi-to-pascal definition underlies this and the bar-to-psi converter elsewhere on the site.
