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inHg - Inches of Mercury at 0 degrees CInch 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 13,595.08 kg/m3 under the pull of gravity at 9.80665 m/s2.
The inHg pressure unit is not used so extensively in the UK anymore and has been mostly replaced by the metric units mmHg and
mbar. However, inches of Mercury are still used extensively in the USA particularly for meteorological purposes when measuring atmospheric pressure. inHg Pressure Conversion Factors
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Site Last Updated: 03/09/10
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