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


lb/in^2
foot of water

The above form works if you are measuring differential pressure, such as the difference in psi between two points. It also gives the correct answer for absolute pressure, assuming you are measuring psia, which is the pressure relative to absolute zero vacuum.

If you are measuring relative to vacuum and want to resolve the pressure relative to the atmosphere, then you should use the form below.

lb/in^2 (relative to atmosphere)
foot of water (relative to vacuum)



Did you mean to convert pound/square inch
pound/square inch [gauge]
pound/square inch [absolute]
 to foot of water

More information from the unit converter

How many lb/in^2 in 1 foot of water? The answer is 0.43352750192825. We assume you are converting between pound/square inch and foot of water [4 °C]. You can view more details on each measurement unit: lb/in^2 or foot of water The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00014503773800722 lb/in^2, or 0.00033455256555148 foot of water. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between pounds/square inch and feet of water. Type in your own numbers in the form to convert the units!



Quick conversion chart of lb/in^2 to foot of water

1 lb/in^2 to foot of water = 2.30666 foot of water

5 lb/in^2 to foot of water = 11.53329 foot of water

10 lb/in^2 to foot of water = 23.06659 foot of water

15 lb/in^2 to foot of water = 34.59988 foot of water

20 lb/in^2 to foot of water = 46.13317 foot of water

25 lb/in^2 to foot of water = 57.66647 foot of water

30 lb/in^2 to foot of water = 69.19976 foot of water

40 lb/in^2 to foot of water = 92.26635 foot of water

50 lb/in^2 to foot of water = 115.33294 foot of water


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You can do the reverse unit conversion from foot of water to lb/in^2, or enter any two units below:

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Common pressure conversions


Definition: Pound/square inch

The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.


Metric conversions and more

ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 70 kg, 150 lbs, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!