Inch of mercury (inHg and ″Hg) is a non-SI unit of measurement for pressure. It is used for barometric pressure in weather reports, refrigeration and aviation in the United States. It is the pressure exerted by a column of mercury 1 inch (25.4 mm) in …

Inches of mercury or inHg is a non-SI unit for pressure. It is still widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere. It is defined as the pressure exerted by a column of mercury of 1 inch in height at 32 °F (0 °C) at the standard acceleration of gravity.

What is high or low barometric pressure? Adjusted to sea level, a pressure reading above 30.2 inHg is considered to be high pressure, and below 29.8 inHg is considered low.

InHg is a measure of pressure. Get more information and details on the 'inHg' measurement unit, including its symbol, category, and common conversions from inHg to other pressure units.

It is defined as the pressure exerted by a circular column of mercury of 1 inch in height at 32 °F (0 °C) 1 inHg = 3386.389 Pa at 0 °C. Common references: The average sea level pressure is 29.92 inches of mercury.

Seamlessly convert between key pressure units, such as Inches of Mercury (inHg), Millimeters of Mercury (mmHg), Pascal (Pa), HectoPascal (hPa) or Millibar (mb), Bar (bar), Atmosphere (atm), and Pound per Square Inch (psi).

Look up a barometric conversion value for millibar (mbar, mb), hectopascal (hPa), pounds per square inch (psi), inches of mercury (inHg), millimetres of mercury (mmHg) or Torr pressure units.

Inch of Mercury is a British and American unit of measure for pressure. 1 inch of mercury at 0 degrees Celsius (32 deg F) equals 3386.39 pascals. An inch of mercury at zero degrees Celsius is defined as the pressure exerted by a column of mercury with a density of 13,595.1 kg/m3 under the pull of gravity at 9.80665 m/s2.

Enter the number of inches of mercury to convert into pounds per square inch. Easy inHg to psi conversion. Inches of mercury are commonly used to measure atmospheric pressure in the United States. A standard atmosphere of pressure is about 29.92 inches of mercury.

Inches of mercury or inHg is a non-SI unit for pressure. It is still widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.