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!

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

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

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

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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