Inches of mercury x 0.4912 = psi
10" Water Column equals about .4 Pounds per Square Inch or 0.36127291827412783psi exactly.
That could depend on several different factors, such as altitude etc... I do believe that at about sea level its -14.7 psi.
You need to know how high the water column is to calculate the pressure it exerts at its base! For example, a column of water 1 metre deep would exert a pressure of 9.81 kPa at its base (density x gravity x depth - 1000 * 9.81 * 1). This would be equal to approx 1.42 PSI.
Well that depends, first off pressure is equal to specific gravity times height. P=SG*h. so the pressure due to the water column would be 0.0361 psi given that SG of water = 62.4 lb/ft^3. Then you have to take into consideration any other pressures acting on the water. If the top of the column is open to the air then the absolute pressure would be 14.7321 psi given that atmospheric pressure is 14.696. The basic formula to make this calculation in any situation is P=P0+SG*h where P0 is the pressure above the column.
14.37 psi is 0.20317789 inches of mercury.
Inches of mercury x 0.4912 = psi
1 psig is equivalent to 51.71 mm (2 in) of mercury or to approx 700 mm (27.5 in) of water. Technically one cannot have apsig. Psig represents a pressure reading of the pressure above normal atmospheric pressure of 14.7 psi. You mean a psi.
27.71 inches of water column equals 1 psi
To convert psi to inches of mercury, multiply the psi value by 2.036. Therefore, 12.6 psi is equivalent to approximately 25.65 inches of mercury.
0.25 psig = 413.7 inches of water column
To convert psi to inches of mercury absolute, divide the psi value by 2.036. In this case, 57 psi divided by 2.036 is approximately 27.97 inches of mercury absolute.
30 inches of mercury = 14.73 psi (1 inch of mercury = 0.491 psi So, 30 x 0.491 = 14.73).
One psi makes a column of mercury rise 51.71 millimeters, based on the measurement that one psi is approximately 6.894 KPa. This is equivalent to 0.00328 feet.
The absolute pressure at 20 inches of mercury is approximately 10.3 psi (pounds per square inch). This is calculated by adding the atmospheric pressure (14.7 psi) to the gauge pressure or vacuum pressure (negative in this case) represented by the 20 inches of mercury column.
You can convert inches of Mercury (inHg) to pounds per square inch (psi) by dividing the inHg value by 2.036. This conversion is based on the relationship between pressure in units of inches of Mercury and pounds per square inch.
Multiply inches of WC by 0.0361 to obtain PSI.