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  1. en.wikipedia.org › wiki › Inch_of_mercuryInch of mercury - Wikipedia

    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 height at the .

  2. simple.wikipedia.org › wiki › Inch_of_mercuryInch of mercury - Simple English Wikipedia, the free encyclopedia

    The inch of mercury (inHg or "Hg) was a non-SI unit of pressure. It was used for measuring barometric pressure, (the thickness of air), in weather forecasts, and aviation (flying), but was replaced by the pascal.

  3. en.wikipedia.org › wiki › Mercury_(planet)Mercury (planet) - Wikipedia

    Mercury is the first planet from the Sun and the smallest in the Solar System. In English, it is named after the ancient Roman god Mercurius (Mercury), god of commerce and communication, and the messenger of the gods. Mercury is classified as a terrestrial planet, with roughly the same surface gravity as Mars.

  4. en.wikipedia.org › wiki › Atmospheric_pressureAtmospheric pressure - Wikipedia

    The average pressure at mean sea level in the International Standard Atmosphere is 1,013.25 hPa, or 1 atmosphere (atm), or 29.92 inches of mercury. Pressure (P), mass (m), and acceleration due to gravity (g) are related by P = F/A = (m*g)/A, where A is the surface area.

  5. www.wikiwand.com › en › articlesInch of mercury - Wikiwand / articles

    2024年8月22日 · 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.

  6. glossarystaging.ametsoc.net › wiki › Inch_of_mercuryInch of mercury - Glossary of Meteorology

    2012年2月20日 · inch of mercury. A common unit used in the measurement of atmospheric pressure. 1) One inch of mercury (in Hg) is defined as that pressure exerted by a 1-in. column of mercury at standard gravity and a temperature of 0°C: This is a unit recommended for meteorological use.

  7. www.wikidoc.org › index › Inch_of_mercuryInch of mercury - wikidoc

    Inches of mercury, inHg or "Hg 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widely used for barometric pressure in weather reports and aviation in the United States, but is considered somewhat outdated elsewhere.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 .