Pressure: bar, psi, kilopascals and atmospheres

Convert pressure between bar, psi, kilopascals and atmospheres. Handy for tyre pressure and technical specifications.

Tyres and engineering

1 bar (bar) bar to psi = 14.503768 psi
1 psi (psi) psi to bar = 0.0689476 bars
1 bar (bar) bar to kPa = 100 kilopascals
1 megapascal (MPa) MPa to bar = 10 bars

Atmosphere and medicine

1 atmosphere (atm) atm to bar = 1.01325 bars
1 mmhg (mm Hg) mmHg to kPa = 0.133322 kilopascals
1 hectopascal (hPa) hPa to mmHg = 0.75006376 mmhg

Overview table

bars psi kilopascals
1.8 26.106783 180
2 29.007536 200
2.2 31.90829 220 typical car tyre pressure
2.5 36.25942 250
2.9 42.060927 290 fully loaded car / van
3.5 50.763188 350 road bike (lower end)
8 116.03014 800 typical workshop compressor

Other tables