Enter the number of cycles and the water used per cycle into the calculator to determine the total water usage of your washing machine.

Washing Machine Water Usage Formula

The following formula is used to calculate the total water usage of a washing machine.

TWU = NC * WPC

Variables:

  • TWU is the total water usage (gallons)
  • NC is the number of cycles
  • WPC is the water used per cycle (gallons)

To calculate the total water usage, multiply the number of cycles by the water used per cycle.

What is Washing Machine Water Usage?

Washing machine water usage refers to the amount of water consumed by a washing machine to complete a washing cycle. It is an important factor for households aiming to conserve water and reduce utility bills. The water usage can vary depending on the efficiency of the washing machine, the selected cycle, and the load size.

How to Calculate Washing Machine Water Usage?

The following steps outline how to calculate the Washing Machine Water Usage.


  1. First, determine the number of cycles the washing machine runs (NC).
  2. Next, determine the water used per cycle (WPC) in gallons.
  3. Next, gather the formula from above = TWU = NC * WPC.
  4. Finally, calculate the Total Water Usage (TWU) in gallons.
  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.

number of cycles (NC) = 5

water used per cycle (WPC) = 30 gallons