How to calculate the Pump head?

Pump head can be find out by following equation:

Head calculation:

H = (p2-p1)/(Rho x g) + Hг + Hl

H – Head, m

p1 – Intake tank pressure, Pa

p2 – Receiving tank pressure, Pa

Rho – Density of the pumped medium, kg/cum

g – Gravity acceleration, mtr/s2

Hr – Height of the pumped medium lift, mtr

Hl– Head loss, mtr