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 torr?

A torr is a pressure unit equal to approximately 1/760 of an atmosphere. It is used in vacuum technology, low-pressure experimental physics, and blood pressure measurement in older clinical literature.

Worked examples

1 inch of mercury = 25.40000632 torr

1 torr = 133.32236842 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