Pounds per square inch to Inches of mercury converter

To convert pounds per square inch to inches of mercury, enter the value in the first field. The result in inches of mercury is calculated automatically using the exact conversion factor.

1 psi ≈ 2.03602067732 inHg
1 inHg ≈ 0.49115414747 psi

Formula: inHg ≈ psi × 2.03602067732
psi ≈ inHg × 0.49115414747

Definitions: 1 psi = 8896443230521/1290320000 Pa; 1 inHg = 25.4 mmHg

The pound per square inch (psi) is the customary United States unit of pressure, one pound-force per square inch. It is used for tire pressure, air compressors and water and gas pressure in the United States, and for tires in the United Kingdom too.

The inch of mercury (inHg) is the pressure at the base of a one-inch column of mercury. It is used in the United States for barometric pressure in weather reports and for altimeter settings in aviation, where standard sea-level pressure is 29.92 inHg.

See the conversion table with commonly used values, handy for quick reference or study.