›› Convert foot of mercury [0 °C] to inch of mercury [0 °C]


ft of mercury
inch of mercury


›› More information from the unit converter

How many ft of mercury in 1 inch of mercury? The answer is 0.083333333333333.
We assume you are converting between foot of mercury [0 °C] and inch of mercury [0 °C].
You can view more details on each measurement unit:
ft of mercury or inch of mercury
The SI derived unit for pressure is the pascal.
1 pascal is equal to 2.4608319226204E-5 ft of mercury, 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 of mercury and inches of mercury.
Type in your own numbers in the form to convert the units!


›› Quick conversion chart of ft of mercury to inch of mercury

1 ft of mercury to inch of mercury = 12 inch of mercury

2 ft of mercury to inch of mercury = 24 inch of mercury

3 ft of mercury to inch of mercury = 36 inch of mercury

4 ft of mercury to inch of mercury = 48 inch of mercury

5 ft of mercury to inch of mercury = 60 inch of mercury

6 ft of mercury to inch of mercury = 72 inch of mercury

7 ft of mercury to inch of mercury = 84 inch of mercury

8 ft of mercury to inch of mercury = 96 inch of mercury

9 ft of mercury to inch of mercury = 108 inch of mercury

10 ft of mercury to inch of mercury = 120 inch of mercury



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›› Common pressure conversions

ft of mercury to meganewton/square meter
ft of mercury to centihg
ft of mercury to inch of air
ft of mercury to sthene/square meter
ft of mercury to millitorr
ft of mercury to kilogram-force/square meter
ft of mercury to nanopascal
ft of mercury to inch of water
ft of mercury to kip/square inch
ft of mercury to picopascal


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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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


›› 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, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!