**Full name:** inch of water [4 °C]

**Plural form:** inches of water

**Symbol:** inH2O

**Alternate spelling:** in of water

**Category type:** pressure

**Scale factor:** 249.08890833333

The SI derived unit for pressure is the pascal.

1 pascal is equal to 0.0040146307866177 inch of water.

Valid units must be of the **pressure** type.

You can use this form to select from known units:

inch of water to water column [inch]

inch of water to hectopascal

inch of water to meter of air [15 °C]

inch of water to meter of head

inch of water to dekabar

inch of water to centipascal

inch of water to dekapascal

inch of water to nanobar

inch of water to micron of mercury [0 °C]

inch of water to meganewton/square metre