Kilopascals to PSI converter

Quick reference

Kilopascals	PSI
1	0.145038
2	0.290075
5	0.725189
10	1.450377
20	2.900755
25	3.625943
50	7.251887
100	14.503774
250	36.259434
500	72.518869
1,000	145.037738

About pressure units

Pressure units come from different traditions: the pascal is the SI unit but inconveniently small (one newton per square meter), so weather reports use kilopascals or bar, tire gauges in the US use PSI (pounds per square inch), medicine uses mmHg for blood pressure, and diving uses atmospheres, roughly the air pressure at sea level (101,325 Pa exactly). A car tire around 32 PSI is about 2.2 bar; standard blood pressure of 120 mmHg is 16 kPa.

More pressure conversions

PSI → Kilopascals PSI → Bar Bar → PSI Atmospheres → PSI mmHg → Kilopascals Bar → Kilopascals All converters

Frequently asked questions

What is the exact formula for Kilopascals to PSI?

Multiply the Kilopascals value by 0.14503774. This comes from the exact unit definitions, not a rounded approximation.

Is this conversion exact?

The underlying ratio is exact where a legal definition exists (for example, 1 inch = 25.4 mm exactly). Displayed results are rounded to six decimal places for readability.

Can I convert PSI back to Kilopascals?

Yes. Use the reverse converter linked below, or just swap which field you type into: the live converter recalculates either direction.