How to convert Atmosphere to Millimeter of mercury

Conversion factor and calculation steps from Atmosphere (atm) to Millimeter of mercury (mmHg).

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 atm = 101325 Pa

1 mmHg = 133.322387415 Pa

1 atm × 101325 = 101325 Pa

101325 Pa ÷ 133.322387415 = 759.999891726 mmHg