Pounds per Square Inch to Bar

1 Pounds per Square Inch equals 0.068948 Bar using exact pascal-based pressure definitions.

Direct Answer

1 Pounds per Square Inch equals 0.068948 Bar

This conversion uses exact pascal-based pressure definitions.

For 0.1 Pounds per Square Inch, the result equals 0.006895 Bar.

Converter Calculator

0.068948 Bar (bar)

Switch

Explanation

Formula: Bar = Pounds per Square Inch × 0.068948. Why: this is a cross-system pressure conversion. The calculator normalizes the value through pascals, then applies the exact target-unit constant for consistent engineering and reference use.

Pounds per square inch (psi): an imperial pressure unit widely used in tires, hydraulics, compressed gas systems, and general mechanical work.

Bar: a metric engineering pressure unit fixed at exactly 100,000 pascals, common in industrial systems, hydraulics, and process equipment.

This route is useful when translating pressure values across SI, metric engineering, and imperial conventions so datasheets, gauges, and calculations stay comparable.

This conversion is purely multiplicative because both units reduce through pascals using fixed pressure constants with no offset.

Method & Reference

Method basis: exact conversion formula shown in Direct Answer.
Applied factor: 1 Pounds per Square Inch = 0.068948 Bar (using exact pascal-based pressure definitions).
Consistency rule: calculator output and table values use the same constants and rounding policy.

Common Conversion Values

Pounds per Square Inch (psi)	Bar (bar)
0.1	0.006895
0.5	0.034474
1	0.068948
5	0.344738
10	0.689476
14.7	1.013529
29.92	2.062911
100	6.894757
101.325	6.986113
1,000	68.947573

Frequently Asked Questions

What is 1 pounds per square inch in bar?

1 Pounds per Square Inch equals 0.068948 Bar on this page.

Does this Pounds per Square Inch to Bar page use fixed pascal equivalents for psi or mmHg?

Yes. Psi and mmHg use fixed pascal equivalents on this page, so gauge, vacuum, and instrumentation values stay consistent across the direct answer, calculator, and table.

When would I convert pounds per square inch to bar?

This route is useful when translating pressure values across SI, metric engineering, and imperial conventions so datasheets, gauges, and calculations stay comparable.

How do I reverse Pounds per Square Inch to Bar?

Use the mirror Bar to Pounds per Square Inch route; it applies the inverse relationship with the same pressure assumptions.