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Unit Value

Quick Reference

  • 1 bar = 14.5038 PSI
  • 1 atm = 101.325 kPa = 14.696 PSI
  • 1 MPa = 145.038 PSI = 10 bar
  • 1 kg/cm² = 14.2233 PSI
Terms
psi
Pounds per square inch.
bar
100 kPa, about 14.5 psi.
Pa, kPa, MPa
Pascal, kilopascal (1,000 Pa) and megapascal (1,000,000 Pa).
atm
Standard atmosphere: 101.325 kPa.
kg/cm²
Kilogram-force per square centimeter.
mmHg (torr)
Millimeters of mercury.
inHg, inH₂O
Inches of mercury and inches of water.