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Learn about the pressure within the atmosphere of Earth, also known as air pressure or barometric pressure. Find out how atmospheric pressure varies with altitude, weather, and location, and what is the standard unit of atmospheric pressure.
Learn how to calculate air pressure above sea level using a simple formula and a table of values. Compare atmospheric pressure at different altitudes from -5000 m to 9000 m.
Learn about atmospheric pressure, the force per unit area exerted by an atmospheric column, and its measurement in different systems of units. Find out how atmospheric pressure varies with altitude and affects weather patterns.
Learn how air pressure is measured, affected by temperature and altitude, and related to weather. Find out the standard air pressure at sea level in inches of mercury and millibars.
Interactive map shows global forecasted mean sea-level pressure based on ICON and GFS models. Zoom in to see pressure at any location or time, or use settings to customize the map.
Learn how to calculate the atmospheric pressure at sea level using the hydrostatic equation and the ideal gas law. Find out how the pressure changes with altitude and how to measure it with a mercury barometer.
19 Οκτ 2023 · An atmosphere (atm) is a unit of measurement equal to the average air pressure at sea level at a temperature of 15 degrees Celsius (59 degrees Fahrenheit). One atmosphere is 1,013 millibars, or 760 millimeters (29.92 inches) of mercury. Atmospheric pressure drops as altitude increases.
