Bar to Atm Converter

Enter a pressure in bar to convert to atm, psi and kPa.

How to use

  1. Enter your values in the fields above.
  2. Press Calculate to see your result instantly.
  3. Use the Share button to copy a link to your result.

About this calculator

This calculator converts pressure from bar — a metric unit close to normal atmospheric pressure and defined as exactly 100,000 pascals — into standard atmospheres (1 atm = 1.01325 bar), psi (1 bar ≈ 14.5038 psi) and kilopascals (1 bar = 100 kPa) in one step.

Bar is common in European gauges, tire pressure specs and diving equipment, while atm and psi dominate in scientific literature and North American engineering respectively — this converter bridges the three unit systems engineers, divers and technicians run into daily.

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