Bar conversion

Use the search box to find your required metric converter



  • bar
  • bar

Unit of:

  • Pressure

Worldwide use:

  • bar is a commonly used unit in meteorology and engineering


1 bar is defined as 100,000 Pascals


The word bar originates from the Greek word βάρος, meaning weight. It is defined with respect to the SI unit Pascal, such that 1 bar ≡ 100000 Pa.

Common references:

  • 1 bar is approximately equal to atmospheric pressure at sea level

Usage context:

Commonly used in meteorology and engineering

Component units:

  • A bar is commonly subdivided into 1,000 millibars.


  • Megabar and Kilobar are derived from the bar, but are not in common use