Pressure Converter

Pascals, bars, atmospheres, psi, millimeters of mercury.

Pa
Pascal
kPa
Kilopascal
bar
Bar
atm
Atmosphere
mmHg
mm of mercury
psi
psi

The pressure converter translates values between pascal (Pa), kilopascal (kPa), bar, atmosphere, millimeter of mercury (mmHg), and psi (pounds per square inch). Type a number into any field and the other units update instantly.

Converting pressure comes up when inflating tires (psi on American and European gauges versus bar and atmospheres), in meteorology (atmospheric pressure in mmHg and hPa), and in engineering and medicine. Reference points: 1 bar ≈ 0.987 atm ≈ 100 kPa, 1 atm = 760 mmHg ≈ 101.3 kPa, 1 psi ≈ 6.895 kPa. For example, 32 psi tire pressure is roughly 2.2 bar.

Calculations go through the pascal as a base unit. Everything is calculated right in your browser, instantly, with no data sent anywhere.

Frequently asked questions

1 bar ≈ 14.504 psi. Conversely, 1 psi ≈ 0.0689 bar.
1 standard atmosphere = 101,325 Pa = 1.01325 bar ≈ 760 mmHg ≈ 14.696 psi.
A typical 2.2 bar ≈ 32 psi ≈ 220 kPa. Tires are usually labeled in psi or bar.

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