›› Convert foot water [4 C] to inch of mercury [0 C]


foot water
inch of mercury

›› More information from the unit converter

How many foot water in 1 inch of mercury? The answer is 1.1329250163878.
We assume you are converting between foot water [4 C] and inch of mercury [0 C].
You can view more details on each measurement unit:
foot water or inch of mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00033455256555148 foot water, or 0.00029529983071445 inch of mercury.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between feet water and inches of mercury.
Type in your own numbers in the form to convert the units!


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

1 foot water to inch of mercury = 0.88267 inch of mercury

5 foot water to inch of mercury = 4.41335 inch of mercury

10 foot water to inch of mercury = 8.82671 inch of mercury

20 foot water to inch of mercury = 17.65342 inch of mercury

30 foot water to inch of mercury = 26.48013 inch of mercury

40 foot water to inch of mercury = 35.30684 inch of mercury

50 foot water to inch of mercury = 44.13355 inch of mercury

75 foot water to inch of mercury = 66.20032 inch of mercury

100 foot water to inch of mercury = 88.26709 inch of mercury


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

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›› Common pressure conversions

foot water to terabar
foot water to dekapascal
foot water to atmosphere
foot water to millimeter water
foot water to meter of air
foot water to newton/square millimeter
foot water to micropascal
foot water to kip/square inch
foot water to pieze
foot water to kilonewton/square meter


›› Definition: Inch of 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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!