How many exacentipascal in 1 inch mercury? The answer is 3.386389E-13. We assume you are converting between exacentipascal and inch mercury [0 °C]. You can view more details on each measurement unit: exacentipascal or inch mercury The SI derived unit for pressure is the pascal. 1 pascal is equal to 1.0E-16 exacentipascal, 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 exacentipascals and inches mercury. Type in your own numbers in the form to convert the units!
1 exacentipascal to inch mercury = 2952998016471.2 inch mercury
2 exacentipascal to inch mercury = 5905996032942.5 inch mercury
3 exacentipascal to inch mercury = 8858994049413.7 inch mercury
4 exacentipascal to inch mercury = 11811992065885 inch mercury
5 exacentipascal to inch mercury = 14764990082356 inch mercury
6 exacentipascal to inch mercury = 17717988098827 inch mercury
7 exacentipascal to inch mercury = 20670986115299 inch mercury
8 exacentipascal to inch mercury = 23623984131770 inch mercury
9 exacentipascal to inch mercury = 26576982148241 inch mercury
10 exacentipascal to inch mercury = 29529980164712 inch mercury
You can do the reverse unit conversion from inch mercury to exacentipascal, or enter any two units below:
The SI prefix "exa" represents a factor of 1018, or in exponential notation, 1E18.
So 1 exacentipascal = 1018 centipascals.
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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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