A centimeter (centimetre) of water or cmH₂O is a somewhat outdated unit for pressure. It is used to measure the central venous pressure, the intracranial pressure while sampling cerebrospinal fluid, as well as determining pressures during mechanical ventilation or in water supply networks (then usually in metres water column). Pressure (symbol: p) is the force per unit area acting on a surface in a direction perpendicular to that surface. ... Central venous pressure (CVP) describes the pressure of blood in the thoracic vena cava, near the right atrium of the heart. ... Intracranial pressure, or ICP, is the pressure of the brain, Cerebrospinal fluid (CSF), and the brains blood supply within the intracranial space. ... Cerebrospinal fluid (CSF), Liquor cerebrospinalis, is a clear bodily fluid that occupies the subarachnoid space in the brain (the space between the skull and the cerebral cortex—more specifically, between the arachnoid and pia layers of the meninges). ... Bag valve mask In medicine, mechanical ventilation is a method to assist or replace spontaneous breathing. ... A water supply network is a system of engineered hydrologic and hydraulic components, including: (1) the watershed or geographic area that collects the water, see Water purification-Sources of Drinking Water; (2) a raw (untreated) water reservoir (above or below ground) where the water gathers, such as a lake, a... The metre, or meter, is a measure of length, approximately equal to 3. ...

It is defined as the pressure exerted by a column of water of 1 cm in height at 4 °C (temperature of maximum density) at the standard acceleration of gravity. Water (from the Old English waeter; c. ... A centimetre (US: centimeter) is a factor of the SI unit of length: there are one hundred centimeters in the base unit of measure, the metre. ... Height is a measurement of the distance from the bottom to the top of something which is upright. ... A degree Celsius (°C) is a unit of temperature named after the Swedish astronomer Anders Celsius (1701-1744), who first proposed a similar system in 1742. ...

1 cmH₂O = 98.0638 pascals

To convert this measure to other units, the following conversion is used: The pascal (symbol: Pa) is the SI unit of pressure. ...

1 mmHg = 1.36 cmH₂O = 0.133 kPa = 0.0193 psi = 1.3332 mbar

One way of defining pressure is in terms of the height of a column of fluid that may be supported by that pressure; or the height of a column of fluid that exerts that pressure at its base. ... Wikipedia does not yet have an article with this exact name. ... Pounds-force per square inch (lbf/in²) is a non-SI unit of pressure. ... A millibar (mbar, also mb) is 1/1000th of a bar, a unit for measurement of pressure. ...

External links

• Pressure conversion calculator at Cornell University website