Convert psi to bar instantly. Enter a value below, or use the formula and reference table further down the page.
In practice
PSI to bar divides by 14.5038, since a bar is 14.5 psi. It matters when a gauge reads in psi but a pump, tyre label or machine specification is in bar: 32 psi is 2.2 bar and 100 psi is 6.9 bar. For tyres, aim for the manufacturer's recommended figure rather than the maximum printed on the sidewall, and check them when cold, since pressure rises as tyres warm up. A difference of a few psi may sound small, but over 10% under-inflation affects fuel economy and handling.
How to convert psi to bar
Multiply the value by 0.0689475729.
bar = psi × 0.0689475729Example: 10 psi = 0.6895 bar.
PSI to Bar conversion table
| PSI (psi) | Bar (bar) |
|---|---|
| 1 psi | 0.0689 bar |
| 2 psi | 0.1379 bar |
| 3 psi | 0.2068 bar |
| 4 psi | 0.2758 bar |
| 5 psi | 0.3447 bar |
| 10 psi | 0.6895 bar |
| 15 psi | 1.0342 bar |
| 20 psi | 1.379 bar |
| 25 psi | 1.7237 bar |
| 50 psi | 3.4474 bar |
| 100 psi | 6.8948 bar |
Frequently asked questions
How many bar is 1 psi?
1 psi equals 0.0689 bar.
What is the formula to convert psi to bar?
To convert psi to bar, multiply the value by 0.0689475729. The full formula is: bar = psi × 0.0689475729.
How do I convert bar back to psi?
Use the same calculator above and type your value into the bar field instead — it converts in both directions. Or use the reverse formula: psi = bar ÷ 0.0689475729.
Is the psi to bar conversion exact?
The conversion factor used here (0.0689475729) is the standard internationally defined value. Results on this page are rounded to four decimal places for readability.