1mmHg = 13.59514mm H2O
Note: You can increase or decrease the accuracy of this answer by selecting the number of significant figures required from the options above the result.
Millimeters of water = Millimeters of mercury * 13.5951428
Millimeters of water = Millimeters of mercury * 13.5951428
Millimeters of water = 1 * 13.595142801528
Millimeters of water = 13.59514
The millimeter of mercury (mmHg) is pressure unit traditionally used in meteorology. It is the pressure from a 1 mm column of mercury at 0°C under normal gravity.
The millimeter of water (mmH₂O) is a unit of pressure exerted by a 1 millimeter column of water at 4 degrees Celsius under standard gravity.