Square Foot Calculator

The carpet calculator will provide the total square feet and square yards required for the dimensions you provide.



Use the Carpet Calculator to calculate how much carpet you need.

To get an estimate of how much carpet you need, measure the length and width of your room in feet.


How wide is the room?

Enter Number of Feet:
Enter Number of Inches:




Determine how much carpet you need

To determine how much carpet you need, first measure the length and width of your room.

Knowing the length and the width will allow you to calculate the total square feet required to install new carpet. This is an estimate of how much carpet you will need. The carpet calculator provides the total square footage of the space, but you will also need to account for waste. Expect to purchase between ten and twenty percent more than the total square footage of the area.

Using the carpet and flooring square foot calculator

  • Measure the width of your room. Enter the number of feet and inches into the carpet calculator tool.
  • Measure the length of your room. Enter the number of feet and inches into the carpet calculator tool.
  • Click the calculate button
  • Carpet Calculator calculates both feet and yards

Use the carpet calculator to estimate how much carpet you need. Don't forget to add an extra ten to twenty percent to account for waste.

Tips on how much carpet to buy

  • Don't skimp on padding. Carpeting relies on a layer of padding for support and cushioning.
  • Carpet comes in many styles and materials. Make sure you choose the carpet that is practical for the space and traffic conditions.
  • When determining how much carpet to buy, make sure to shop around. Get separate pricing for the material and installation so you can make a good comparison.
  • There are numerous colors and textures to choose from when shopping for carpet. Always take carpet samples home and look at them in the natural light before you make your decision.

How to measure carpet for your room

Measuring the amount of carpet or flooring you need is done by identifying the square footage of the area. To measure the square footage of a room, multiply the length times the width. This is the formula for calculating square feet. This calculation assumes that you are measuring carpet to be installed in a rectangle shaped area.

Measuring a room with a closet or measuring multiple rooms can be done by adding the square footage of each of the areas together.

Things to consider when calculating sq feet for carpet installation

  • The carpet calculator only provides an estimate. Have a carpet installer make final measurements before purchasing new carpet.
  • Carpet is generally available in measurements of 12 and 15 foot widths. Rooms wider than that require seems and pattern matching.
  • Not all rooms are as straight as they seem. When measuring a room for carpet you will need to account for spaces that are out of square or uneven.
  • Don't forget about closets, hallways, stairs, and doorways when measuring carpet.
  • When measuring an "L" shaped room, measure each section separately and add them together.
  • It's always a good idea when measuring carpet to sketch a blueprint of your floorplan.