PSI to Bar Converter
Convert pounds per square inch to bar instantly with a pressure calculator built for engineering checks, tire pressure, HVAC work, barometric readings, hydraulics, and technical reference.
psi to bar Calculator
Enter a pressure value and get the converted result automatically.
Result updates automatically.
Formula: bar = pounds per square inch × 0.0689475729
How to Convert PSI to Bar
Use the standard pressure conversion factor: multiply pounds per square inch by 0.0689475729 to get bar. This reference is useful for tire pressure, industrial gauges, weather data, medical readings, fluid systems, and scientific calculations.
1 pound per square inch
0.0689475729 bar
10 pounds per square inch
0.6894757293 bar
100 pounds per square inch
6.8947572932 bar
Pressure Formula Notes
The calculator converts through pascals as the SI base pressure unit, then formats the result for the selected output unit.
PSI to Bar Converter FAQ
How do I convert psi to bar?
Multiply the psi value by 0.0689475729 to get bar. The calculator performs this automatically and keeps useful precision.
Which pressure units are supported?
This tool supports psi, bar, kPa, Pa, MPa, mmHg, and standard atmosphere units for common engineering and measurement tasks.
Can I reverse the pressure conversion?
Yes. Use the swap button to reverse the selected units and convert bar back to psi.