After both minor losses and friction losses have been calculated, these values can be summed to find the total head loss.
Equation for total head loss, , can be simplified and rewritten as:
= Frictional head loss
= Downstream velocity
 = Gravity of Earth
 = Hydraulic radius
 =Total length of piping
 = Fanning friction factor
= Sum of all kinetic energy factors in system
Once calculated, the total head loss can be used to solve the Bernoulli Equation and find unknown values of the system.