|Pipe Pressure Loss Calculator
Wall drag and changes in height lead to pressure drops in pipe fluid flow.
To calculate the pressure drop and flowrates in a section of uniform pipe running from Point A to Point B, enter the parameters below. The pipe is assumed to be relatively straight (no sharp bends), such that changes in pressure are due mostly to elevation changes and wall friction. (The default calculation is for a smooth horizontal pipe carrying water, with answers rounded to 3 significant figures.)
Note that a positive Dz means that B is higher than A, whereas a negative Dz means that B is lower than A.