cmH2O\text{cmH}_{2}\text{O}

centimeter of water column

Pressureexact by definition

The centimetre of water column is exactly 98.0665 pascals on the conventional basis. It is the unit of respiratory medicine: ventilator pressures, CPAP settings and lung compliance are all in cmH₂O, and a normal breath moves about 5 to 10 of them.

1 cmH2O\text{cmH}_{2}\text{O} 0.0980665 kPa\text{kPa}

One centimeter of water column in every pressure unit

980.665microbar (μbar)
980.665barye (Ba)
735.559millitorr (mTorr)
98.0665pascal (Pa)
10millimeter of water column (mmH₂O)
2.04816pound per square foot (lb/ft²)
1centimeter of water column (cmH₂O)this unit
0.980665hectopascal (hPa)
0.980665millibar (mbar)
0.735559torr (Torr)
0.735559millimeter of mercury (mmHg)
0.393701inch of water column (in w.g.)
0.0980665kilopascal (kPa)
0.0328084foot of water column (ft H₂O)
0.028959inch of mercury (inHg)
0.0142233pound per square inch (psi)
0.01meter of water column (m H₂O)
0.00980665decibar (dbar)
0.001kilogram-force per square centimeter (kgf/cm²)
0.000980665bar (bar)
0.000967841atmosphere (atm)
0.0000980665megapascal (MPa)
0.0000142233kip per square inch (ksi)
9.80665e-08gigapascal (GPa)
1.42233e-08million pounds per square inch (Mpsi)