How to convert psi to bar
Formula: bar = psi × 0.06894757. Worked example: 10 psi = 0.6894757 bar. Quick estimate: multiply by about 0.07 — the error is 1.5%, fine for everyday use but not for engineering or shopping by exact size.
About these units
One bar is 100,000 Pa; one pound per square inch (psi) is about 6,894.76 Pa. Tyre pressures are given in bar in Europe (2.2–2.5 bar) and in psi in the US (32–36 psi); gauge readings are relative to atmospheric pressure.
Category: pressure. Results on this page are calculated in your browser and rounded to 7 significant digits; the table above uses 6. For other units of pressure open the full unit converter, or use the reverse page — bar to psi.