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


foot water
pound/square inch

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.

foot water (relative to vacuum)
pound/square inch (relative to atmosphere)

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


›› More information from the unit converter

How many foot water in 1 pound/square inch? The answer is 2.3066587368787.
We assume you are converting between foot water [4 °C] and pound/square inch.
You can view more details on each measurement unit:
foot water or pound/square inch
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00033455256555148 foot water, or 0.00014503773800722 pound/square inch.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between feet water and pounds/square inch.
Type in your own numbers in the form to convert the units!


›› Quick conversion chart of foot water to pound/square inch

1 foot water to pound/square inch = 0.43353 pound/square inch

5 foot water to pound/square inch = 2.16764 pound/square inch

10 foot water to pound/square inch = 4.33528 pound/square inch

20 foot water to pound/square inch = 8.67055 pound/square inch

30 foot water to pound/square inch = 13.00583 pound/square inch

40 foot water to pound/square inch = 17.3411 pound/square inch

50 foot water to pound/square inch = 21.67638 pound/square inch

75 foot water to pound/square inch = 32.51456 pound/square inch

100 foot water to pound/square inch = 43.35275 pound/square inch



›› Want other units?

You can do the reverse unit conversion from pound/square inch to foot water, or enter any two units below:

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›› Common pressure conversions

foot water to ton/square meter
foot water to kilopond/square centimeter
foot water to ton/square foot
foot water to petabar
foot water to decipascal
foot water to gigabar
foot water to poundal/square foot
foot water to foot of air
foot water to inch water
foot water to foot of head


›› 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, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!