More information from the unit converter
How many psi in 1 inch of mercury? The answer is 0.49115415222661. We assume you are converting between pound/square inch and inch of mercury [0 °C]. You can view more details on each measurement unit: psi or inch of mercury The SI derived unit for pressure is the pascal. 1 pascal is equal to 0.00014503773800722 psi, 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 pounds/square inch and inches of mercury. Type in your own numbers in the form to convert the units!
Quick conversion chart of psi to inch of mercury
1 psi to inch of mercury = 2.03602 inch of mercury
5 psi to inch of mercury = 10.1801 inch of mercury
10 psi to inch of mercury = 20.36021 inch of mercury
15 psi to inch of mercury = 30.54031 inch of mercury
20 psi to inch of mercury = 40.72041 inch of mercury
25 psi to inch of mercury = 50.90052 inch of mercury
30 psi to inch of mercury = 61.08062 inch of mercury
40 psi to inch of mercury = 81.44083 inch of mercury
50 psi to inch of mercury = 101.80103 inch of mercury
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You can do the reverse unit conversion from inch of mercury to psi, or enter any two units below:
Common pressure conversions
psi to centimeter mercury psi to inch water psi to hectobar psi to nanopascal psi to centimeter water psi to centibar psi to dyne/square centimeter psi to millimeter of water psi to kilogram-force/square millimeter psi to water column
Definition: Pound/square inch
The pound per square inch or, more accurately, pound-force per square inch (symbol: psi or lbf/in² or lbf/in²) is a unit of pressure or of stress based on avoirdupois units. It is the pressure resulting from a force of one pound-force applied to an area of one square inch.
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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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
[BLOGURL] 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!
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