What is inch of mercury?

Inch of mercury (inHg) is a pressure unit representing the pressure exerted by a one-inch column of mercury. It is used in aviation altimetry, barometric pressure readings, and vacuum measurements in the United States.

What is pound per square inch?

Pound per square inch (psi) is an imperial pressure unit widely used in the United States for tire inflation, hydraulic system pressures, gas cylinder ratings, and plumbing specifications.

Worked examples

1 inch of mercury = 0.4911542 pound per square inch

1 pound per square inch = 6,894.75729317 pascal

More Pressure conversions

• Convert inch of mercury to pascal
• Convert inch of mercury to kilopascal
• Convert inch of mercury to bar
• Convert inch of mercury to pound per square inch
• Convert inch of mercury to atmosphere
• Convert inch of mercury to millibar
• Convert inch of mercury to hectopascal
• Convert inch of mercury to torr
• Convert inch of mercury to megapascal