Unit converter

Kilopascals to PSI.

Convert kPa to psi and psi to kPa. Type in either box and the other follows. Tyre placards in metric countries print kPa; UK and US gauges read psi. 220 kPa is about 32 psi.

From

kPa → psiExact definition

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Display precision

Kilopascals to pounds per square inch — common values, to 6 significant figures.
kPa	psi
100 kPa	14.5038 psi
150 kPa	21.7557 psi
200 kPa	29.0075 psi
220 kPa	31.9083 psi
240 kPa	34.8091 psi
260 kPa	37.7098 psi
280 kPa	40.6106 psi
300 kPa	43.5113 psi
400 kPa	58.0151 psi
500 kPa	72.5189 psi

1 kPa = 0.1450377377 psi

1 psi = 6.894757293 kPa

Conversion goes through Pa in both directions, so neither figure is rounded on the way.

Definitions

The kilopascal is 1000 pascals. Tyre placards in metric countries are usually printed in kPa or bar.
The pound per square inch is exactly 6894.757 293 Pa. UK and US tyre gauges are still marked in it.
This conversion is exact by definition. 1 kPa = 0.1450377377 psi.
Pressure is converted through Pa.

How it works

One direction multiplies and the other divides by the same number, so nothing is lost by going back and forth.

The value passes through Pa, the unit every other pressure unit on the site is defined against, rather than a number written into this page on its own. That is why the figure here, the figure in the table above and the general pressure converter always agree.

Display precision sets a maximum number of significant figures and trims trailing zeroes, so it changes what you see and never what was calculated. The editable box always holds a plain number at full working precision, so you can carry on from either side.

Common questions this answers: how many pounds per square inch in a kilopascal (0.145038), how many kilopascals in a pound per square inch (6.89476), and what 220 kPa is in pounds per square inch (31.9083 psi).

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