**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 .

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

You can use this form to select from known units:

inch of water [4 °C] to kip/square foot

inch of water [4 °C] to meter of head

inch of water [4 °C] to kilopond/square centimetre

inch of water [4 °C] to micrometer of mercury [0 °C]

inch of water [4 °C] to poundal/square foot

inch of water [4 °C] to kilogram/square centimetre

inch of water [4 °C] to hectobar

inch of water [4 °C] to millipascal

inch of water [4 °C] to

inch of water [4 °C] to millihg