Psi to Bar Converter
Convert pounds per square inch to bar instantly. Free psi to bar converter for pressure.
Formula
bar = PSI × 0.0689476
Common Conversions
How to Convert PSI to Bar
1 bar = 14.504 psi. Divide psi by 14.504 to get bar. So 30 psi ÷ 14.504 = 2.07 bar. Bar is roughly equal to atmospheric pressure (1 atm ≈ 1.013 bar), so it's intuitive for everyday pressure measurements like tyre pressure, plumbing, or weather.
Tyre pressure example: a typical car tyre at 32 psi = 2.21 bar. UK and EU tyre placards usually show bar; US show psi. Cycling tyres: road bike 100-130 psi = 6.9-9.0 bar. Mountain bike 25-50 psi = 1.7-3.4 bar. Higher pressures = harder rolling (better for road), lower = better grip (better for mountain).
Common PSI to Bar
| PSI | Bar |
|---|---|
| 1 psi | 0.069 bar |
| 14.5 psi | 1 bar |
| 30 psi | 2.07 bar |
| 32 psi (typical tyre) | 2.21 bar |
| 50 psi | 3.45 bar |
| 100 psi (road bike) | 6.89 bar |
| 120 psi | 8.27 bar |
| 200 psi | 13.79 bar |
Frequently Asked Questions
What's the right tyre pressure?
Check the placard in the driver's door jamb or owner's manual. Typically 30-35 psi (2.07-2.41 bar) for cars. Truck tyres often higher 50-60 psi (3.4-4.1 bar). Always check pressure cold (before driving).
Are bar and atmosphere the same?
Close: 1 atm = 1.01325 bar. Bar is metric pressure (10^5 pascal); atmosphere is the average pressure at sea level. Often used interchangeably in casual usage but technically different by about 1.3%.
Related Tools
Bar to Psi Converter
Convert bar to pounds per square inch easily. Free bar to psi converter for pressure.
Atm to Psi Converter
Convert atmospheres to psi instantly. Free atm to psi converter for pressure conversions.
Psi to Atm Converter
Convert psi to atmospheres easily. Free psi to atm converter for pressure calculations.