Enter the amount of water used and the load size into the calculator to determine the water factor. The water factor is a measure of water efficiency in washing machines.

Water Factor Formula

The following formula is used to calculate the water factor (WF):

WF = frac{Water Used}{Load Size}

Variables:

  • Water Used is the total water consumed during a wash cycle (gallons).
  • Load Size is the size of the laundry load (cubic feet).
  • Water Factor (WF) is a dimensionless number representing water efficiency.

To calculate the water factor, divide the total water used by the load size. A lower water factor indicates higher water efficiency.

What is a Water Factor?

The water factor is a metric used to compare the water efficiency of different washing machines. It is calculated by dividing the total water used by the load size. The lower the water factor, the more water-efficient the washing machine is. This is an important consideration for consumers looking to reduce their water usage and for manufacturers aiming to create more eco-friendly appliances.

How to Calculate Water Factor?

The following steps outline how to calculate the Water Factor.


  1. First, determine the total water used during a wash cycle (in gallons).
  2. Next, determine the size of the laundry load (in cubic feet).
  3. Use the formula WF = Water Used / Load Size.
  4. Finally, calculate the Water Factor (WF).
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

Water Used during a wash cycle = 40 gallons

Size of the laundry load = 3 cubic feet