Convert pressure units including pascals, kilopascals, megapascals, bar, psi, ksi, atmosphere, torr, mmHg, inches of water, inches of mercury, and more.
PSI to kilopascals:
1 psi = 6.89476 kPa
Kilopascals to PSI:
1 kPa = 0.145038 psi
Bar to PSI:
1 bar = 14.5038 psi
Atmosphere to pascals:
1 atm = 101,325 Pa
Pressure conversions are useful for pipe systems, pumps, tanks, compressors, hydraulics, pneumatics, boilers, HVAC equipment, tires, weather readings, and engineering design checks.
Use this converter when comparing metric, U.S. customary, atmospheric, and fluid pressure units.
Your result shows the entered pressure converted from the starting unit into the selected ending unit. The calculator also shows the conversion rate used so you can verify the calculation.
For engineering and fluid system work, make sure the pressure unit matches the equipment rating, design reference, drawing, formula, or specification you are using.
Pressure is force applied over a given area.
The SI unit of pressure is the pascal, abbreviated as Pa.
One psi equals approximately 6.89476 kilopascals.
PSI means pounds per square inch. KSI means thousand pounds per square inch, so 1 ksi equals 1,000 psi.
This converter is designed for pressure magnitude conversions, so it uses non-negative values.