pounds per square inch (psi)

pounds per square inch as a conversion hub: 7 direct pairs, all with the exact factor on the page.

Definition1 psi = 6.894757 kPa exactly

CategoryPressure Converter

Pairs from here7

Pressure Converter

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pounds per square inch converted to every other unit

psi	kPa	bar	atm	mmHg	inHg	hPa	MPa
1 psi	6.894757	0.06894757	0.06804596	51.714925	2.03602	68.947573	0.0068947573
2 psi	13.789515	0.13789515	0.13609193	103.43	4.072041	137.895	0.01378951
5 psi	34.473786	0.34473786	0.34022982	258.575	10.180102	344.738	0.03447379
10 psi	68.947573	0.68947573	0.68045964	517.149	20.360205	689.476	0.06894757
20 psi	137.895	1.378951	1.360919	1,034.3	40.720409	1,378.95	0.13789515
50 psi	344.738	3.447379	3.402298	2,585.75	101.801	3,447.38	0.34473786
100 psi	689.476	6.894757	6.804596	5,171.49	203.602	6,894.76	0.68947573

All conversions starting from psi

psi to kPa psi to bar psi to atm psi to mmHg psi to inHg psi to hPa psi to MPa

Questions

How do I convert from pounds per square inch?

Pick the target unit from the table on this page, or open the dedicated pair page — each one carries a converter, a table of common values and the exact factor.

Is pounds per square inch exact or approximate?

The factor shown (1 psi = 6.894757 kPa) is fixed by definition, so conversions are exact rather than measured.

What is pounds per square inch used for?

tire pressure in the US and torque-spec sheets