How to convert Bar to Atmosphere

Conversion factor and calculation steps from Bar (bar) to Atmosphere (atm).

Conversion logic

Each unit is defined via the base unit (pascal (Pa)). The value is first converted to the base unit, then to the selected unit.

1 bar = 100000 Pa

1 atm = 101325 Pa

1 bar × 100000 = 100000 Pa

100000 Pa ÷ 101325 = 0.986923266716 atm