Square Footage Calculator
Calculate the square footage of rooms, floors, and entire buildings with our free online calculator. Perfect for planning construction projects, estimating materials, and more.
Square Footage Calculator
Calculate the square footage of rooms, floors, and entire buildings
About Square Footage Calculations
Square footage is calculated by multiplying the length by the width of a room or space. For irregular shapes, break the area into rectangles, calculate each separately, and add them together. This calculator can help with room planning, flooring projects, paint estimation, and more.
How to Calculate Square Footage
Square footage is a measurement of area expressed in square feet. To calculate the square footage of a space:
- Measure the length and width of the area in feet
- Multiply the length by the width
- The result is the square footage
For irregular shapes, divide the area into regular shapes (like rectangles), calculate each separately, and add them together.
Common Uses for Square Footage Calculations
- Determining flooring materials needed (hardwood, carpet, tile)
- Estimating paint required for walls and ceilings
- Calculating heating and cooling requirements
- Planning furniture layouts and room designs
- Estimating construction costs based on area
- Real estate listings and property valuations