Convert pounds per square inch to bar in one step. Type a value, change the units if you need a different pair, and the answer updates as you type, with the reverse rate and a quick reference list.
Results are estimates for planning. Check the figures before you make a financial or health decision.
How to convert pounds per square inch to bar
Multiply the number of psi by 0.068948 to get bar:
bar = psi × 0.068948
To go the other way, divide by 0.068948 (or multiply by 14.503774). The converter stores each unit as a multiple of a base unit, so you can also pick any other pair of units from the same group.
Worked example
Using the default values in the converter above:
| Input | Value |
|---|---|
| Value | 32 |
| From | Pounds per square inch |
| To | Bar |
32 pounds per square inch equals 2.206322 bar
PSI to Bar reference table
| Pounds per square inch | Bar |
|---|---|
| 1 psi | 0.068948 bar |
| 5 psi | 0.344738 bar |
| 10 psi | 0.689476 bar |
| 20 psi | 1.378951 bar |
| 30 psi | 2.068427 bar |
| 32 psi | 2.206322 bar |
| 36 psi | 2.482113 bar |
| 50 psi | 3.447379 bar |
| 100 psi | 6.894757 bar |
Tips and common mistakes
Tyre pressures in the UK are often given in both psi and bar. One bar is about 14.5 psi, so 32 psi is about 2.2 bar. Always use the pressure printed in the car handbook or on the door pillar, not the maximum moulded on the tyre wall.
Gauges on garage forecourts show gauge pressure, which is the pressure above the surrounding atmosphere. Weather forecasts and scientific figures often use absolute pressure, which is about 1 bar higher at sea level.
Standard atmospheric pressure is 101,325 Pa, or about 1.013 bar, 14.7 psi and 760 mmHg.
Frequently asked questions
How many bar are in 1 psi?
1 psi equals 0.068948 bar.
How do I convert psi to bar by hand?
Multiply the psi figure by 0.068948. For example, 32 psi × 0.068948 = 2.206322 bar.
How do I convert bar back to psi?
Divide the bar figure by 0.068948, or multiply it by 14.503774. For example, 2.206322 bar is 32 psi.
Is this conversion exact?
The factors are the standard definitions, with results rounded to six decimal places.