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)

To calculate water wheel power, multiply the net head distance by the volume flow rate, then again by the the acceleration due to gravity.

## 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)