Pressure / bar → psi
Convert Bars to Pounds-force per square inch
Convert pressure differences or absolute pressures between consistent units. Convert Bars (bar) to Pounds-force per square inch (psi). Find the formula, worked examples, unit definitions, and practical guidance below.
Reverse: Pounds-force per square inch to Bars →
How to convert bars to pounds-force per square inch
This changes units only. Gauge and absolute pressures need a known ambient pressure to relate them; the converter does not add atmospheric pressure.
Use x for the value in bar, b for the intermediate value in Pa, and y for the result in psi.
psi = bar × 100000 ÷ 6894.757293168361
Worked examples
10 bar ≈ 145.03773773 psi
Step 1: (10 × 100000) ≈ 1000000 Pa.
Step 2: 1000000 ÷ 6894.75729317 ≈ 145.03773773 psi.20 bar ≈ 290.07547546 psi
Step 1: (20 × 100000) ≈ 2000000 Pa.
Step 2: 2000000 ÷ 6894.75729317 ≈ 290.07547546 psi.
Results are rounded to 12 significant digits. Converting units does not increase the precision of the original measurement. Very large or small values outside JavaScript’s finite numeric range are rejected.
About Bars
Bars (bar) measures pressure under the conventions above. The base value in Pa is (x × 100000), where x is the numerical value in bar. Factors shown here are rounded for display; calculations use the stored factor.
About Pounds-force per square inch
Pounds-force per square inch (psi) measures pressure under the conventions above. The base value in Pa is (x × 6894.75729317), where x is the numerical value in psi. Factors shown here are rounded for display; calculations use the stored factor.
Definitions and sources
Carry the same physical assumptions into subsequent physics calculations.
Bars to pounds-force per square inch reference table
| Bars (bar) | Pounds-force per square inch (psi) |
|---|---|
| 1 | 14.503773773 |
| 5 | 72.5188688651 |
| 10 | 145.03773773 |
| 25 | 362.594344326 |
| 50 | 725.188688651 |
| 100 | 1450.3773773 |
| 1000 | 14503.773773 |
Browse every pressure conversion →