Bar to PSI Online Converter

This Bar to PSI (pounds per square inch) converter is designed to quickly and accurately convert pressure values from bar to psi and vice versa. The calculator is ideal for various fields, such as mechanical engineering, fluid dynamics, and other industries that require precise pressure measurements. The tool automatically handles both directions of conversion, making it convenient for users needing reliable results instantly.

Bar to PSI Converter

This converter automatically converts between bar and pounds per square inch (psi) in both directions. You can also set the number of decimal places to round the results.

Bar: PSI (pounds per square inch):

Decimal Places (0 to 10):

How to Use the Calculator

To use the converter, input a value in bar into the first field. The corresponding value in psi will be automatically calculated and displayed in the second field. If you need to convert psi back to bar, simply input a value into the psi field, and the tool will reverse the calculation to display the value in bar. You can also adjust the number of decimal places for precision.

Formula Used

The formula for converting bar to psi is as follows:

PSI (pounds per square inch) = Bar × 14.5038

For the reverse conversion, divide psi by 14.5038 to get the value in bar.

Precalculated Values

Here are some common real-world examples of bar to psi conversions:

1 bar = 14.5038 psi (approximately atmospheric pressure at sea level)
2 bar = 29.0076 psi (pressure of a typical car tire)
5 bar = 72.519 psi (pressure in some hydraulic systems)
10 bar = 145.038 psi (industrial air compressors)
20 bar = 290.076 psi (higher-end industrial systems)
50 bar = 725.19 psi (used in specialized machinery and equipment)
100 bar = 1450.38 psi (used in high-pressure testing equipment)

History and Interesting Facts

The bar is a unit of pressure defined as 100,000 Pascals and is widely used in Europe, particularly in industries like weather forecasting and automotive engineering. On the other hand, psi, or pounds per square inch, is primarily used in the United States and other countries following the imperial system. The need to convert between these two units arises due to the difference in the measurement systems used globally.

The bar was introduced by the meteorologist Vilhelm Bjerknes, while psi remains the most common pressure unit in the U.S., especially for things like tire pressure.