How many gigapascal in 1 inch mercury?
The answer is 3.386389E-6.

We assume you are converting between **gigapascal** and .

You can view more details on each measurement unit:

gigapascal or
inch mercury

The SI derived unit for **pressure** is the pascal.

1 pascal is equal to 1.0E-9 gigapascal, 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 gigapascals and inches mercury.

Type in your own numbers in the form to convert the units!

1 gigapascal to inch mercury = 295299.80165 inch mercury

2 gigapascal to inch mercury = 590599.60329 inch mercury

3 gigapascal to inch mercury = 885899.40494 inch mercury

4 gigapascal to inch mercury = 1181199.20659 inch mercury

5 gigapascal to inch mercury = 1476499.00824 inch mercury

6 gigapascal to inch mercury = 1771798.80988 inch mercury

7 gigapascal to inch mercury = 2067098.61153 inch mercury

8 gigapascal to inch mercury = 2362398.41318 inch mercury

9 gigapascal to inch mercury = 2657698.21482 inch mercury

10 gigapascal to inch mercury = 2952998.01647 inch mercury

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

gigapascal to yottapascal

gigapascal to zeptopascal

gigapascal to gram/square centimeter

gigapascal to nanobar

gigapascal to kilopond/square millimeter

gigapascal to ton/square meter

gigapascal to dekabar

gigapascal to terapascal

gigapascal to millimeter mercury

gigapascal to dekapascal

The SI prefix "giga" represents a factor of
10^{9}, or in exponential notation, 1E9.

So 1 gigapascal = 10^{9} pascals.

The definition of a pascal is as follows:

The pascal (symbol Pa) is the SI unit of pressure.It is equivalent to one newton per square metre. The unit is named after Blaise Pascal, the eminent French mathematician, physicist and philosopher.

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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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