Pound per Square Inch (psi)

Pounds per square inch (PSI or lbf/in²) is the standard pressure unit in the United States. PSI measures tire pressure (30-35 PSI for cars), air compressors, water pressure, and HVAC systems. One PSI equals approximately 6.895 kPa or 0.0689 bar.

Convert From PSI

Pound per Square Inch to Pascal Pound per Square Inch to Hectopascal psi to kPa psi to MPa psi to bar Pound per Square Inch to Millibar Pound per Square Inch to Pound per Square Foot psi to atm psi to mmHg Pound per Square Inch to Torr Pound per Square Inch to Inch of Mercury Pound per Square Inch to Centimeter of Water

Convert To PSI

Pascal to Pound per Square Inch Hectopascal to Pound per Square Inch kPa to psi MPa to psi bar to psi Millibar to Pound per Square Inch Pound per Square Foot to Pound per Square Inch atm to psi mmHg to psi Torr to Pound per Square Inch Inch of Mercury to Pound per Square Inch Centimeter of Water to Pound per Square Inch

Conversion Factors

1 psi 6894.7572932 Pa

1 psi 68.947572932 hPa

1 psi 6.8947572932 kPa

1 psi 0.0068947573 MPa

1 psi 0.0689475729 bar

1 psi 68.947572932 mbar

1 psi 144 psf

1 psi 0.0680459639 atm

1 psi 51.714925204 mmHg

1 psi 51.714932572 Torr

1 psi 2.0360204611 inHg

1 psi 70.306957964 cmH₂O

Related Units

Pascal (Pa) Hectopascal (hPa) Kilopascal (kPa) Megapascal (MPa) Bar (bar) Millibar (mbar) Pound per Square Foot (psf) Atmosphere (atm) Millimeter of Mercury (mmHg) Torr (Torr) Inch of Mercury (inHg) Centimeter of Water (cmH₂O)