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


foot of water
pound/square inch [gauge]

The above form works if you are measuring differential pressure, such as the difference in psi between two points.

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

Note that psig can measure differential pressure in some applications and absolute pressure in others, so you need to know which one fits your calculation.

foot of water (relative to vacuum)
pound/square inch [gauge] (relative to atmosphere)



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

More information from the unit converter

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



Quick conversion chart of foot of water to pound/square inch [gauge]

1 foot of water to pound/square inch [gauge] = 0.43353 pound/square inch [gauge]

5 foot of water to pound/square inch [gauge] = 2.16764 pound/square inch [gauge]

10 foot of water to pound/square inch [gauge] = 4.33528 pound/square inch [gauge]

20 foot of water to pound/square inch [gauge] = 8.67055 pound/square inch [gauge]

30 foot of water to pound/square inch [gauge] = 13.00583 pound/square inch [gauge]

40 foot of water to pound/square inch [gauge] = 17.3411 pound/square inch [gauge]

50 foot of water to pound/square inch [gauge] = 21.67638 pound/square inch [gauge]

75 foot of water to pound/square inch [gauge] = 32.51456 pound/square inch [gauge]

100 foot of water to pound/square inch [gauge] = 43.35275 pound/square inch [gauge]


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

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Common pressure conversions


Definition: Pound/square inch

Psig (pound-force per square inch gauge) is a unit of pressure relative to the surrounding atmosphere. By contrast, psia measures pressure relative to a vacuum (such as that in space). At sea level, Earth's atmosphere actually exerts a pressure of 14.7 psi. Humans do not feel this pressure because internal pressure of liquid in their bodies matches the external pressure. If a pressure gauge is calibrated to read zero in space, then at sea level on Earth it would read 14.7 psi. Thus a reading of 30 psig on a tire gauge represents an absolute pressure of 44.7 psi.


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!