How Do You Convert Pressure From Inches Of Mercury To Millibars?
There are many units used to measure pressure. One such is inches of mercury. The source of this unit is the use of mercury, a metal which is liquid at room temperature, as the moving part in a pressure gauge known as a manometer. In this device, atmospheric pressure is measured by the height of a column of mercury it can push up. One can use millimeters of mercury as well as inches.Another unit of pressure is the millibar, or 1/1000 of a bar. The bar is equal to 100,000 Newtons per square meter, so a millibar is equal to 100 Newtons per square meter.Interestingly, standard atmospheric pressure at sea level is almost exactly 1 bar (accurate to better than 1.5%). It is in fact 1013.2 millibar. Multiply the pressure in inches of mercury by 0.0254 to arrive at meters of mercury. For example, if the barometric pressure reported in the weather report is 30 inches of mercury, that would be 0.762 meters of mercury. Multiply the pressure in meters of mercury by the density of mercury, 13579.04
