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


inch of mercury
foot water

›› More information from the unit converter

How many inch of mercury in 1 foot water? The answer is 0.88267094956417.
We assume you are converting between inch of mercury [0 C] and foot water [4 C].
You can view more details on each measurement unit:
inch of mercury or foot water
The SI derived unit for pressure is the pascal.
1 pascal is equal to 0.00029529983071445 inch of mercury, or 0.00033455256555148 foot water.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between inches of mercury and feet water.
Type in your own numbers in the form to convert the units!


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

1 inch of mercury to foot water = 1.13293 foot water

5 inch of mercury to foot water = 5.66463 foot water

10 inch of mercury to foot water = 11.32925 foot water

15 inch of mercury to foot water = 16.99388 foot water

20 inch of mercury to foot water = 22.6585 foot water

25 inch of mercury to foot water = 28.32313 foot water

30 inch of mercury to foot water = 33.98775 foot water

40 inch of mercury to foot water = 45.317 foot water

50 inch of mercury to foot water = 56.64625 foot water


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›› Common pressure conversions

inch of mercury to millihg
inch of mercury to foot of air
inch of mercury to decitorr
inch of mercury to ounce/square inch
inch of mercury to decipascal
inch of mercury to kilogram-force/square millimeter
inch of mercury to kilopond/square millimeter
inch of mercury to millimeter water
inch of mercury to nanobar
inch of mercury to newton/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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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!