What is the si unit of velocity head,pressure head and also what is the formula of these quantities

What is the si unit of velocity head,pressure head and also what is th

1.	What is the si unit of velocity head,pressure head and also what is the formula of these quantities
Answer» No this is not right i am asking about pressure head and velocity head that comes in bernoullis theorem SI unit of Velocity=m/s nd pressure=N/m^2Formula of Velocity=displacements/time nd for pressure=force/area