Enter the total cost of power ($), the wattage usage (watts), and the time (hrs) into the Wattage Price Calculator. The calculator will evaluate and display the Wattage Price. 

Wattage Price Formula

The following formula is used to calculate the Wattage Price. 

WP = CP / (W*T)

  • Where WP is the Wattage Price ($/Whr)
  • CP is the total cost of power ($) 
  • W is the wattage usage (watts) 
  • T is the time (hrs) 

How to Calculate Wattage Price?

The following example problems outline how to calculate Wattage Price.

Example Problem #1

  1. First, determine the total cost of power ($).
    1. The total cost of power ($) is given as 4,000.
  2. Next, determine the wattage usage (watts). 
    1. The wattage usage (watts) is calculated as: 500.
  3. Next, determine the time (hrs). 
    1. The time (hrs) is found to be: 2.
  4. Finally, calculate the Wattage Price using the formula above: 

WP = CP / (W*T)

Inserting the values from above yields: 

WP = 4000/ (500*2) = 4.00 ($/Whr)


Example Problem #2

The variables needed for this problem are provided below:

total cost of power ($) = 50

wattage usage (watts) = 29

time (hrs) = 120

This example problem is a test of your knowledge on the subject. Use the calculator above to check your answer. 

WP = CP / (W*T) = ($/Whr)