Convert foot of head to pound/square inch [gauge]


foot of head
lbs/in2

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 head (relative to vacuum)
lbs/in2 (relative to atmosphere)



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

More information from the unit converter

How many foot of head in 1 lbs/in2? The answer is 2.3072493927233. We assume you are converting between foot of head and pound/square inch [gauge]. You can view more details on each measurement unit: foot of head or lbs/in2 The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00033463823293911 foot of head, or 0.00014503773800722 lbs/in2. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between feet of head and pounds/square inch. Type in your own numbers in the form to convert the units!



Quick conversion chart of foot of head to lbs/in2

1 foot of head to lbs/in2 = 0.43342 lbs/in2

5 foot of head to lbs/in2 = 2.16708 lbs/in2

10 foot of head to lbs/in2 = 4.33417 lbs/in2

20 foot of head to lbs/in2 = 8.66833 lbs/in2

30 foot of head to lbs/in2 = 13.0025 lbs/in2

40 foot of head to lbs/in2 = 17.33666 lbs/in2

50 foot of head to lbs/in2 = 21.67083 lbs/in2

75 foot of head to lbs/in2 = 32.50624 lbs/in2

100 foot of head to lbs/in2 = 43.34165 lbs/in2


Want other units?

You can do the reverse unit conversion from lbs/in2 to foot of head, 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!