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centimeter of water (4°C)
Symbol:  cmH2O 
Category:  Pressure 
SI Equivalent:  98.0638 Pa
Dimension ML-1T-2 
Pressure unit defined by a column of water at 4°C with a height of 1cm.
Convert     cmH2O  
1 cmH2O =
Energy density
  Symbol Unit Name
2.63195×10-3  Btu (IT)/ft3  British thermal unit (IT) per cubic foot 
4.22543×10-4  Btu (IT)/gal (UK)  British thermal unit (IT) per gallon (UK) 
3.51841×10-4  Btu (IT)/gal (US)  British thermal unit (IT) per gallon (US) 
98.0638  J/m3  joule per cubic meter 
9.80638×10-2  kJ/m3  kilojoule per cubic meter 
1.23231×10-2  MGOe  megagauss-oersted (MGOe) 
  Symbol Unit Name
9.99972×10-4  at  atmosphere (metric) 
9.67814×10-4  atm  atmosphere (standard) 
9.80638×10-4  bar  bar 
980.637  barad  barad 
980.637    barye 
7.35539×10-2    centiHg (0°C) 
7.35539×10-2  cmHg (0 °C)  centimeter of mercury (0°C) 
980.637  dyn/cm2  dyne per square centimeter 
3.28084×10-2  ft H2O  foot of water (4°C) 
9.80638×10-8  GPa  gigapascal 
0.980638  hPa  hectopascal 
2.89583×10-2  inHg (0 °C)  inch of mercury (0°C) 
2.90372×10-2  inHg (15.56 °C)  inch of mercury (15.56°C) 
0.394075  inH2O (15.56 °C)  inch of water (15.56°C) 
0.393701  inH2O (4 °C)  inch of water (4°C) 
9.99972×10-4  kgf/cm2  kilogram force per square centimeter 
9.99972×10-2  kgf/dm2  kilogram force per square decimeter 
9.99972  kgf/m2  kilogram force per square meter 
9.99972×10-6  kgf/mm2  kilogram force per square millimeter 
9.80638×10-2  kPa  kilopascal 
1.42229×10-5  kip/in2, ksi, KSI  kilopound force per square inch 
9.80638×10-5  MPa  megapascal 
1.00095×10-2  mH2O, mCE (15.56 °C)  meter of water (15.56°C) 
1×10-2  mH2O, mCE (4 °C)  meter of water (4°C) 
980.637  µbar  microbar (barye, barrie) 
735.539  µHg (0 °C)  micron of mercury (millitorr) 
0.980638  mbar  millibar 
0.735539  mmHg, torr, Torr (0 °C)  millimeter of mercury (0°C) 
10.0095  mmH2O, mmCE (15.56 °C)  millimeter of water (15.56°C) 
10  mmH2O, mmCE (4 °C)  millimeter of water (4°C) 
735.539  mtorr  millitorr 
98.0638  N/m2  newton per square meter 
0.227567  ozf/in2, osi  ounce force (av.) per square inch 
98.0638  Pa, N/m2  pascal 
2.0481  lbf/ft2  pound force per square foot 
1.42229×10-2  psi, PSI, lbf/in2  pound force per square inch 
65.8958  pdl/ft2  poundal per square foot 
0.45761  pdl/in2  poundal per square inch 
9.67814×10-4  atm  standard atmosphere 
9.14332×10-4  tonf/ft2 (UK)  ton force (long) per square foot 
6.34953×10-6  tonf/in2 (UK)  ton force (long) per square inch 
9.99972×10-7  tonf/cm2 (metric)  ton force (metric) per square centimeter 
9.99972×10-3  tonf/m2 (metric)  ton force (metric) per square meter 
1.02405×10-3  tonf/ft2 (US)  ton force (short) per square foot 
7.11147×10-6  tonf/in2 (US)  ton force (short) per square inch 
0.735539  torr  torr