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 megapascal?

A megapascal is a pressure unit equal to one million pascals. It is used for measuring high pressures in industrial hydraulics, structural materials testing, and deep-sea and geological applications.

Worked examples

1 inch of mercury = 0.00338639 megapascal

1 megapascal = 1,000,000 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