Inch of water conversions

Convert inches of water to

inch of water (unit of pressure), pl. inches of water, abbr. inH2O

The inch of water conversion selector on this page selects the pressure/stress measurement unit to convert to starting from inches of water (inH2O). To make a conversion starting from a unit of pressure other than inch of water, simply click on the "Reset" button.

About inch of water

The inch of water is a non-SI unit of pressure equal to about 249.082 pascals (1 inH2O = 249.082 Pa), the SI derived unit of pressure.

The inch of water (inH2O) is also equal to 2.49082 hectopascals (hPa), or 0.249082 kilopascals (kPa), or about 0.002458248 atmospheres (atm), or 0.00249082 bars (bar), or 1.868268 millimeters of mercury (mmHg), or 0.036126 pounds per square inch (psi), or 5.2021857 pounds per square foot (psf) or 1.868268 torr (Torr).

The inches of water is the pressure applied by a column of water one inch high at 4 °C in a gravitational field.

The inch of water is a unit of pressure commonly used in the United States for measuring small pressure differences of air and other industrial gases.

Symbol: inH2O

Plural: inches of water

Also known as: inch water column (plural: inches water column), inch WC (plural: inches WC)

Inch of water conversions: a detailed list with conversions from inches of water to other (metric, imperial, or customary) pressure and stress measurement units is shown below.

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