IQHabUnited States Measurement Square Footage Calculator

Square footage calculator

Measure a room or whole area in square feet — including L-shaped rooms — and route it into a project planner.

Enter one or more areas. For L-shaped rooms, split the room into rectangles.

Add your areas and dimensions to get square footage, then route it into a planner.

How to use it

Enter each rectangle's length and width. For an L-shaped room, split it into two rectangles and add them. The result feeds into the flooring, painting and landscaping planners.

  • Split any irregular shape into rectangles.
  • Add each area to the list.
  • Use the buttons to carry the area into a planner.

These estimates are based on state-level averages, not ZIP-level precision. The final cost varies with your home and local market.