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Inch of mercury (inHg)

Used in US aviation altimeters and barometers.

Result3.386389

1 inch of mercury = 3.386389 kilopascals

Inch of mercury at a glance

Unit nameInch of mercury (plural: inches of mercury)
SymbolinHg
Quantity measuredPressure
Measurement systemUS customary
Also known asin hg, inches of mercury
Definition exact?No — factor is rounded

1 inch of mercury in other pressure units

Unit1 inHg equals
Pascal3,386.389 Pa
Hectopascal33.86389 hPa
Kilopascal3.386389 kPa
Megapascal0.003386389 MPa
Bar0.03386389 bar
Millibar33.86389 mbar
Pound per square inch0.4911542 psi
Standard atmosphere0.033421061 atm
Torr25.4000063 Torr
Millimeter of mercury25.4000027 mmHg
Dyne per square centimeter33,863.89 dyn/cm²

Frequently asked questions

What is a inch of mercury?
Used in US aviation altimeters and barometers.
What is the symbol for the inch of mercury?
The symbol for the inch of mercury is inHg. It measures pressure.
How many kilopascals are in a inch of mercury?
1 inch of mercury = 3.386389 kilopascals.
How many bars are in a inch of mercury?
1 inch of mercury = 0.03386389 bars.
How many pounds per square inch are in a inch of mercury?
1 inch of mercury = 0.4911542 pounds per square inch.