Standards message here
Convert one measurement of pressure to mmHg, cmH2O, or kPa. Enter a value in the appropriate row and click on the adjacent calculate button.
The relationship of these measurements are:
1 mmHg = 1.36 cmH2O = 0.133 kPa = 0.0193 PSI
A Pascal (Pa) is a Newton-per-meter squared.
Please be aware of potential rounding errors when going back and forth between units of measurement.
Revised: October 25, 2000