Pressure Converter

Popular Pressure Conversions

• bar to psi
• psi to bar
• pascal to bar
• bar to pascal
• atmosphere to bar
• millimeter of mercury to pound per square inch

Complete List of Pressure Units

All available pressure units for conversion:

• pascal [Pa]
• 1 kilopascal [kPa] = 1000 pascal [Pa]
  kilopascal to pascal, pascal to kilopascal
• 1 bar [bar] = 100000 pascal [Pa]
  bar to pascal, pascal to bar
• 1 atmosphere [atm] = 101325 pascal [Pa]
  atmosphere to pascal, pascal to atmosphere
• 1 pound per square inch [psi] = 6.8947573 pascal [Pa]
  pound per square inch to pascal, pascal to pound per square inch
• 1 millimeter of mercury [mmHg] = 133.32239 pascal [Pa]
  millimeter of mercury to pascal, pascal to millimeter of mercury
• 1 millibar [mbar] = 100 pascal [Pa]
  millibar to pascal, pascal to millibar
• 1 megapascal [MPa] = 1000000 pascal [Pa]
  megapascal to pascal, pascal to megapascal
• 1 gigapascal [GPa] = 1000000000 pascal [Pa]
  gigapascal to pascal, pascal to gigapascal
• 1 hectopascal [hPa] = 100 pascal [Pa]
  hectopascal to pascal, pascal to hectopascal
• 1 torr [Torr] = 133.32237 pascal [Pa]
  torr to pascal, pascal to torr
• 1 inch of mercury [inHg] = 338.639 pascal [Pa]
  inch of mercury to pascal, pascal to inch of mercury
• 1 pascal [Pa] = 20.885434 pound per square foot [psf]
  pound per square foot to pascal, pascal to pound per square foot
• 1 technical atmosphere [at] = 98066.5 pascal [Pa]
  technical atmosphere to pascal, pascal to technical atmosphere
• 1 meter of water column [mH₂O] = 9806.65 pascal [Pa]
  meter of water column to pascal, pascal to meter of water column
• 1 foot of water column [ftH₂O] = 2990.6991 pascal [Pa]
  foot of water column to pascal, pascal to foot of water column
• 1 inch of water column [inH₂O] = 249.08891 pascal [Pa]
  inch of water column to pascal, pascal to inch of water column
• 1 pascal [Pa] = 10 dyne per square centimeter [dyn/cm²]
  dyne per square centimeter to pascal, pascal to dyne per square centimeter
• 1 pascal [Pa] = 10 microbar [μbar]
  microbar to pascal, pascal to microbar

Pressure Measurement and Conversion

Pressure conversion is critical in engineering, automotive, aerospace, and scientific applications. Our converter handles absolute, gauge, and vacuum measurements.

Pressure Units

Pascal (Pa) is the SI unit, but practical applications use bar, PSI, atmospheres, and mmHg. Each serves specific industries and applications.

Gauge vs. Absolute

Gauge pressure measures relative to atmospheric pressure (0 PSI = 14.7 PSIA). Absolute pressure includes atmospheric pressure in the measurement.

Applications by Unit

PSI: tire pressure, hydraulics. Bar: meteorology, scuba diving. mmHg: blood pressure, vacuum systems. kPa: engineering, scientific work.

Vacuum Measurements

Vacuum systems use torr, mmHg, and microns. Perfect vacuum = 0 absolute pressure. Industrial vacuums rarely achieve perfect vacuum.

Common Applications

Automotive (tire pressure), medical (blood pressure), meteorology, hydraulic systems, pneumatics, vacuum technology, and HVAC.

Conversion Tips

1 bar ≈ 14.5 PSI. Standard atmospheric pressure: 1013.25 mbar, 14.696 PSI, or 760 mmHg. Check if measurements are gauge or absolute.