What this conversion means in practice
Psi shows up on US gauges and automotive stickers; bar is common in Europe and many industrial datasheets. Converting psi to bar keeps tire and hydraulic specs comparable without relearning rough multiples.
The exact relationship here is 1 psi = 0.068947572932 bar, consistent with expressing both units relative to pascals (Pa).
How to convert pound-force per square inch to bar
Multiply the pound-force per square inch value by 0.068947572932 to get bar.
Example: 1 psi × 0.068947572932 = 0.068947572932 bar.
Pound-force per square inch and Bar
This focused page locks to the unit pair above so you can quote or audit one factor without scrolling the full dropdown list. For context on other rows, open the parent converter from the site navigation.
Pound-force per square inch to Bar conversion table
| Pound-force per square inch (psi) | Bar (bar) |
|---|---|
| 0.1 psi | 0.006894757293 bar |
| 1 psi | 0.068947572932 bar |
| 2 psi | 0.137895145864 bar |
| 5 psi | 0.344737864659 bar |
| 10 psi | 0.689475729318 bar |
| 20 psi | 1.378951458636 bar |
| 50 psi | 3.447378646589 bar |
| 100 psi | 6.894757293178 bar |
Pound-force per square inch to Bar FAQ
Psi versus bar: definitions, rounding for inflation charts, and when to trust gauge class.
How do I convert psi to bar?
Multiply the value in psi by 0.068947572932 to obtain bar. That factor is the ratio of the two units in the same base system as the site’s full converter.
Is this factor the same as the main converter tool?
Yes. The numeric relationship uses the same unit definitions and base normalization as the corresponding converter on CalcRegistry.
Why might my hand calculation differ slightly?
Rounding after intermediate steps, display precision limits, or mixing alternate definitions (for example different “horsepower” variants) can shift the last digits. Use this page’s factor end-to-end for consistency.