Pressure Converter

unit-converter

Convert between SI, meteorology, industrial, and column-based pressure units including kgf/cm², inHg, inH2O, mmH2O, torr, and mmHg. All Unit Conversions panel included.

Convert Pressure

Formula will appear here

All Unit Conversions

Bar0.000000
Atmosphere0.000000
PSI0.000000
Kilogram-force per Square Centimeter0.000000
Inch of Mercury (inHg)0.000000
Inch of Water (inH2O, 4 °C)0.000000
Millimeter of Water (mmH2O, 4 °C)0.000000
Kilopascal0.000000
Hectopascal (hPa)0.000000
Millibar (mbar)0.000000
Torr0.000000
Millimeter of Mercury (mmHg)0.000000
Pascal0.000000

Dedicated converters (SI, meteorology, industrial gauge, and manometric pressure units)

156 pages — every pair of units below, with fixed input/output, formulas, examples, and conversion tables.

Pressure Converter Guide

Quick start

  • Enter a value and pick source and target units. The result updates as you type.
  • Use swap to reverse units and copy to copy the result. The All Unit Conversions panel lists your value across every supported pressure unit.

Formulas & deeper content

Need formulas, worked examples, and tables for one pair (e.g. bar to PSI)? Use a dedicated converter from the list above.

Short answers to common questions are in the FAQ section above. All calculations run in your browser; Pa, kPa, hPa, bar, atm, PSI, torr, and mmHg are supported.

Example uses

  • Engineering: tire pressure, hydraulics, and vessel ratings in bar or PSI.
  • Meteorology: surface pressure in hPa or millibar.
  • Medicine and vacuum: mmHg, torr, and pascal equivalents.
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