Units of measurement
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Calculations
Millimeters of water (mmH2O)
Inches of water (inH2O)
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Information
Millimeters of water (mmH2O)
Millimeters of water (mmH2O) — a unit of pressure equal to the pressure exerted by a 1-millimeter high column of water. Used in hydrostatics and water systems.
Inches of water (inH2O)
Inches of water (inH2O) — a unit of pressure equal to the pressure exerted by a 1-inch high column of water. Used for measuring in water supply systems.