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Free Pressure
Converter

Free engineering pressure converter with Pa, kPa, MPa, bar, psi, atm, torr, mmHg, inHg, water column units, gauge/absolute conversion and altitude atmosphere estimates.

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About Free Pressure Converter

Convert pressure instantly across engineering, weather, vacuum and water-column units — with gauge/absolute handling, configurable atmospheric pressure and a standard-atmosphere altitude estimator.

Workspace options

  • Target unit
  • Pressure
  • Unit
  • Input is
  • Atmospheric pressure (kPa)
  • Or estimate from altitude (m)

Available actions

  • Export history
  • All units
  • Gauge ↔ Absolute
  • Reference
  • Copy result
  • Swap units ↔