Enter the total area of the room and the percentage of waste to calculate the total carpet waste.

Carpet Waste Formula

The following formula is used to calculate the carpet waste.

W = (A * P) / 100


  • W is the carpet waste (square feet) A is the total area of the room (square feet) P is the percentage of waste (%)

To calculate the carpet waste, multiply the total area of the room by the percentage of waste, then divide the result by 100. This will give you the amount of carpet waste in square feet.

What is a Carpet Waste?

Carpet waste refers to the leftover material or discarded items from the production, installation, and removal of carpets. This includes offcuts, underlay, and old carpets that have been removed from homes or commercial properties. Carpet waste is a significant environmental issue as it often ends up in landfills and is not easily biodegradable. It can also release harmful chemicals when incinerated. Recycling or repurposing carpet waste is a more sustainable option, but it can be a complex and costly process.

How to Calculate Carpet Waste?

The following steps outline how to calculate the Carpet Waste using the formula: W = (A * P) / 100

  1. First, determine the total area of the room (A) in square feet.
  2. Next, determine the percentage of waste (P) as a decimal.
  3. Next, use the formula W = (A * P) / 100 to calculate the carpet waste in square feet.
  4. Finally, calculate the Carpet Waste.
  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.

total area of the room (A) = 500 square feet

percentage of waste (P) = 10%