PSI to Bar Converter
Convert pounds per square inch (psi) to bar (bar) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
psi to bar formula
bar = psi × 0.0689475729
1 pound per square inch = 0.0689 bar · 1 bar = 14.5 pounds per square inch
To convert pounds per square inch to bar, multiply the value by 0.0689475729. For example, 32 psi:
bar = 32 × 0.0689475729bar = 2.206322
So 32 psi = 2.21 bar.
Mental math shortcut
Quick mental estimate: divide by 14.5. For 32 psi that gives about 2.21 bar — within 1% of the exact answer. Use the exact formula when precision matters.
psi to bar conversion table
bar back to psi
The same values converted the other way, rounded for everyday use:
| Bar | Pounds per square inch |
|---|---|
| 0.0689 bar | 0.9993 psi |
| 0.6895 bar | 10 psi |
| 1.01 bar | 14.65 psi |
| 1.38 bar | 20.02 psi |
| 2.07 bar | 30.02 psi |
| 2.21 bar | 32.05 psi |
| 2.41 bar | 34.95 psi |
| 2.76 bar | 40.03 psi |
About the units
Pounds per square inch (psi)
Pounds per square inch is the US unit of pressure, used for tires and air compressors. 1 psi ≈ 0.0689 bar.
Bar (bar)
One bar is 100,000 pascals, roughly atmospheric pressure at sea level. It is used for tire pressure in Europe.
Frequently asked questions
How many bar are in a pound per square inch?
One pound per square inch equals 0.0689 bar.
What is 32 psi in bar?
32 psi = 2.21 bar.
How do I convert bar back to psi?
Divide the bar by 0.0689475729. Or use the Bar to PSI converter.