How do I Convert Inches of Mercury to Inches of Water Pressure?
Pressure can be measured in many different units, including inches of mercury and inches of water. Inches of mercury are usually abbreviated using mercury’s symbol, Hg. Inches of water usually uses the chemical composition of water, H2O. You can convert from one unit to another using conversion factors and a calculator. Multiply the number of inches of mercury by 25.4 to convert to millimeters of mercury. For example, if you had 2 inches of mercury, you would multiply 2 by 25.4 to convert to 50.8 millimeters of mercury. Multiply the number of millimeters of mercury by 13.1 to convert to millimeters of water. Continuing the example, you would multiply 50.8 by 13.6 to get 690.88 millimeters of water. Divide the number of millimeters of water by 25.4 to convert to inches of water. Completing the example, you would divide by 690.88 by 25.4 to get 27.2 inches of water.
