Psi to Bars
Pounds per square inch is the standard pressure unit for tire inflation and plumbing in the US. A bar is close to average atmospheric pressure at sea level, widely used for tire pressure and industrial gauges in Europe. 1 psi equals ≈0.0689476 bar, so converting between them is a matter of multiplying by that fixed factor — type any value into the converter below and both sides update instantly as you type.
Both units belong to pressure, measured here against pressure's base unit (Pa) — every other pressure unit on this site converts through that same reference point, which is why the table below can also be read as a quick cross-check against nearby values.
Formula
bar = psi × ≈0.0689476
psi = bar × ≈14.5038
Worked example: 5 psi × ≈0.0689476 = ≈0.344738 bar.
Conversion table
| PSI (psi) | Bar (bar) |
|---|---|
| 1 psi | ≈0.0689476 bar |
| 2 psi | ≈0.137895 bar |
| 3 psi | ≈0.206843 bar |
| 5 psi | ≈0.344738 bar |
| 10 psi | ≈0.689476 bar |
| 20 psi | ≈1.37895 bar |
| 25 psi | ≈1.72369 bar |
| 50 psi | ≈3.44738 bar |
| 100 psi | ≈6.89476 bar |
| 250 psi | ≈17.2369 bar |
| 500 psi | ≈34.4738 bar |
| 1,000 psi | ≈68.9476 bar |
Frequently asked
- How many Bars in a psi?
- 1 psi equals ≈0.0689476 bar.
- How do I convert PSI to Bars?
- Multiply the value in psi by ≈0.0689476 to get bar. The converter above does this instantly as you type.
- Is the conversion exact?
- Yes — PSI and Bar are both defined by a fixed conversion factor to pressure's base unit (Pa), so the result shown is exact to the precision displayed, not an approximation.