Bar to PSI Converter

How to convert Bar to PSI

To convert Bar to PSI, multiply the value in Bar by 14.503768. For example, 5 bar = 72.51884 psi.

The Bar-to-PSI conversion comes up often in everyday and professional contexts alike. With 1 bar equal to 14.503768 psi, you can use the tool above for any value, or scan the table below for the most common Bar amounts and their PSI equivalents.

Pressure conversions are used in weather forecasting, engineering, diving, automotive maintenance, and industrial processes. Different fields favor different units, making conversion a regular necessity.

Understanding Bar and PSI

The pascal is the SI unit, but it's small, so kilopascals and bars are more practical for everyday use. PSI (pounds per square inch) dominates in US engineering and tire pressures, while atmospheres provide an intuitive reference point — 1 atm is roughly the air pressure at sea level. Weather reports use hectopascals or millibars, which are numerically identical.

How accurate is this conversion?

Pressure conversions are based on fixed physical definitions. One standard atmosphere equals exactly 101,325 pascals, and 1 bar equals exactly 100,000 pascals, so all conversions here are precise.

All conversion factors on ClearUnits are based on internationally recognised standards (the International System of Units, SI, and official definitions). Factors are reviewed for accuracy and the calculator uses full-precision values, rounding only the displayed result.

Quick reference: common Bar to PSI values

The most frequently searched conversions are 1 Bar = 14.503768 PSI, 5 Bar = 72.51884 PSI, 10 Bar = 145.03768 PSI, and 100 Bar = 1,450.377 PSI. The full table further down covers every common value, and the calculator handles any number you need in between.