Millimeter of mercury to Atmosphere
Millimeter of mercury (mmHg)
Atmosphere (atm)
How it is calculated
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 mmHg = 133.322387415 Pa
1 atm = 101325 Pa
1 mmHg × 133.322387415 = 133.322387415 Pa
133.322387415 Pa ÷ 101325 = 0.00131578966114 atm