What is 30 psi in kPa?

30 × 6.89476 = 206.84 kPa — a typical car tire pressure.

Is psi gauge or absolute pressure?

psi by itself is gauge pressure (relative to atmosphere). psig = gauge, psia = absolute. Most tire gauges show gauge pressure. See our pressure guide for the full explanation.

What is normal blood pressure in kPa?

Standard blood pressure of 120/80 mmHg = 16.0/10.7 kPa. To convert mmHg to kPa, multiply by 0.133322.

PSI to Kilopascals Converter

1 psi = 6.89476 kPa. Atmospheric pressure = 14.696 psi = 101.325 kPa. Tire pressure: 30–36 psi.

Inverse conversion

1 kPa = 0.145038 psi. Atmospheric pressure = 101.325 kPa = 14.696 psi. Car tires: 207–248 kPa.

Kilopascals to PSI →

Formula

kPa = psi × 6.89476

Worked example

A tire inflated to 32 psi: 32 × 6.89476 = 220.63 kPa.

Quick reference table

psi	kPa
1	6.894757
5	34.473786
10	68.947573
15	103.421359
30	206.842719
60	413.685438
100	689.475729
145	999.739808

Unit definitions

PSI (psi)

PSI (pounds per square inch) is an imperial pressure unit: 1 psi = 1 lbf/in² = 6,894.757 Pa.

Kilopascal (kPa)

The kilopascal (kPa) = 1,000 Pa. Standard pressure unit in metric countries and for scientific data.

Common use cases

Converting US tire pressures to kPa for metric vehicles
Exporting engineering specs to metric markets
Blood pressure: mmHg and kPa conversions
Compressed air systems

Bar to PSI PSI to Bar Megapascals to PSI

Related guides

Common Pressure Units: PSI, Bar, kPa, atm, and MPa Explained

Pressure is force per unit area, and its units reflect the different industries and national standards that have evolved over centuries. This guide explains what each common pressure unit means, where it is used, and how to convert between them accurately.

Frequently asked questions

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