Enter the total energy required to heat the water (kWh) and the cost of the energy ($/kWh) into the Water Heating Cost Calculator. The calculator will evaluate and display the Water Heating Cost. 

Water Heating Cost Formula

The following formula is used to calculate the Water Heating Cost. 

WHC = E * CE

  • Where WHC is the Water Heating Cost ($)
  • E is the total energy required to heat the water (kWh) 
  • CE is the cost of the energy ($/kWh) 

How to Calculate Water Heating Cost?

The following example problems outline how to calculate Water Heating Cost.

Example Problem #1:

  1. First, determine the total energy required to heat the water (kWh). The total energy required to heat the water (kWh) is given as 500.
  2. Next, determine the cost of the energy ($/kWh). The cost of the energy ($/kWh) is provided as 2.5.
  3. Finally, calculate the Water Heating Cost using the equation above: 

WHC = E * CE

The values given above are inserted into the equation below:

WHC = 500 * 2.5 = 1250 ($)

Example Problem #2: 

The variables needed for this problem are provided below:

total energy required to heat the water (kWh) = 700

cost of the energy $/(kWh) = .3

Entering these values and solving gives:

WHC = E * CE = 210 ($)