›› Convert foot of head to


foot of head
inch mercury


›› More information from the unit converter

How many foot of head in 1 inch mercury? The answer is 1.1332152310044.
We assume you are converting between foot of head and .
You can view more details on each measurement unit:
foot of head or inch mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00033463823293911 foot of head, or 0.00029529980164712 inch mercury.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between feet of head and inches mercury.
Type in your own numbers in the form to convert the units!


›› Quick conversion chart of foot of head to inch mercury

1 foot of head to inch mercury = 0.88244 inch mercury

5 foot of head to inch mercury = 4.41222 inch mercury

10 foot of head to inch mercury = 8.82445 inch mercury

20 foot of head to inch mercury = 17.6489 inch mercury

30 foot of head to inch mercury = 26.47335 inch mercury

40 foot of head to inch mercury = 35.2978 inch mercury

50 foot of head to inch mercury = 44.12224 inch mercury

75 foot of head to inch mercury = 66.18337 inch mercury

100 foot of head to inch mercury = 88.24449 inch mercury



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›› Common pressure conversions

foot of head to exapascal
foot of head to newton/square millimeter
foot of head to kip/square inch
foot of head to kilopond/square centimeter
foot of head to foot of water
foot of head to ounce/square inch
foot of head to zeptobar
foot of head to poundal/square foot
foot of head to technical atmosphere
foot of head to inch of water


›› Definition: Inch mercury

Inches of mercury or inHg is a non-SI unit for pressure. It is still widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.

It is defined as the pressure exerted by a column of mercury of 1 inch in height at 32 °F (0 °C) at the standard acceleration of gravity.

1 inHg = 3,386.389 pascals at 0 °C.

Aircraft operating at higher altitudes (above 18,000 feet) set their barometric altimeters to a standard pressure of 29.92 inHg or 1,013.2 hPa (1 hPa = 1 mbar) regardless of the actual sea level pressure, with inches of mercury used in the U.S. and Canada. The resulting altimeter readings are known as flight levels.

Piston engine aircraft with constant-speed propellers also use inHg to measure manifold pressure, which is indicative of engine power produced.


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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!