Enter the net head distance (m) and the water flow rate (L/s) into the calculator to determine the Water Wheel Power. 

Water Wheel Power Formula

The following formula is used to calculate the Water Wheel Power. 

Pww = H*Q*g

  • Where Pww is the Water Wheel Power (watts)
  • H is the net head distance (m) 
  • Q is the water flow rate (L/s) 
  • g is the acceleration due to gravity (9.81 m/s^2)

How to Calculate Water Wheel Power?

The following two example problems outline how to calculate the Water Wheel Power.

Example Problem #1:

  1. First, determine the net head distance (m). In this example, the net head distance (m) is measured to be 3.
  2. Next, determine the water flow rate (L/s). For this problem, the water flow rate (L/s) is calculated to be 100.
  3. Finally, calculate the Water Wheel Power using the formula above: 

Pww = H*Q*g

Inserting the values from above and solving the equation with the imputed values gives: 

Pww = 3*100*9.81 = 2943 (watts)


Example Problem #2: 

Using the same process as example problem 1, we first define the variables outlined by the formula. In this case, the values are:

net head distance (m) = 5

water flow rate (L/s) = 140

Entering these values into the formula or calculator above gives us:: 

Pww = 5*140*9.81 = 6867 (watts)