Bar to PSI converter

How to convert bar to pounds per square inch

To convert bar to pounds per square inch, use psi = bar × 14.5038. For example, 5 bar is 72.5189 psi. Type any value in the converter above and the result updates instantly.

The Bar to PSI formula

The conversion is psi = bar × 14.5038. One bar equals 14.5038 psi. This conversion is exact: bar is defined precisely in terms of pound per square inch, so the only rounding is in the digits shown.

Bar to PSI conversion table

Where bar and pounds per square inch are used

Bar is the common unit for tire, water and gas pressure in Europe; 1 bar is roughly atmospheric pressure.

PSI (pounds per square inch) is the common unit for tire, air compressor and hydraulic pressure in the United States.

Worked examples

These examples use the formula above, so you can check the converter or do the same by hand:

• 1 bar = 14.5038 psi
• 2 bar = 29.0075 psi
• 3 bar = 43.5113 psi

Converting bar to pounds per square inch in your head

As a quick estimate, multiply by 15 (rounded).

PSI to Bar reference table

For the opposite direction, these values are handy to have at hand:

Common mistakes to avoid

• Gauge pressure (what tire gauges read) does not include atmospheric pressure; the conversion between units is unaffected.
• Tire pressure in psi and bar should always follow the vehicle maker's recommended value.

About this converter

The converter accepts whole numbers, decimals and negative values, gives the result as you type, and uses full precision internally, so what you copy is as accurate as it can be. It runs in your browser: nothing you type is sent to a server, it keeps working offline once the page has loaded, and there is nothing to install.

Need the opposite direction? Use the PSI to Bar converter.