Bar to PSI Converter
Convert bar (bar) to pounds per square inch (psi) instantly. Type a value — the result updates as you type, and the swap button converts the other way.
bar to psi formula
psi = bar × 14.503773773
1 bar = 14.5 pounds per square inch · 1 pound per square inch = 0.0689 bar
To convert bar to pounds per square inch, multiply the value by 14.503773773. For example, 2.2 bar:
psi = 2.2 × 14.503773773psi = 31.908302
So 2.2 bar = 31.91 psi.
Mental math shortcut
Quick mental estimate: multiply by 14.5. For 2.2 bar that gives about 31.9 psi — within 1% of the exact answer. Use the exact formula when precision matters.
bar to psi conversion table
psi back to bar
The same values converted the other way, rounded for everyday use:
| Pounds per square inch | Bar |
|---|---|
| 14.5 psi | 0.9997 bar |
| 29.01 psi | 2 bar |
| 31.91 psi | 2.2 bar |
| 36.26 psi | 2.5 bar |
| 43.51 psi | 3 bar |
| 72.52 psi | 5 bar |
| 145.04 psi | 10 bar |
| 1450.38 psi | 100 bar |
About the units
Bar (bar)
One bar is 100,000 pascals, roughly atmospheric pressure at sea level. It is used for tire pressure in Europe.
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.
Frequently asked questions
How many pounds per square inch are in a bar?
One bar equals 14.5 pounds per square inch.
What is 2.2 bar in psi?
2.2 bar = 31.91 psi.
How do I convert psi back to bar?
Divide the pounds per square inch by 14.503773773. Or use the PSI to Bar converter.