Square Footage = Length × Width. Example: 12 ft × 10 ft = 120 sq ft. For multiple rooms, add all areas together.
Used for flooring, paint, tile, carpet, and real estate measurements.
Calculate the area of multiple rooms or spaces. Add shape types, waste factors, and pricing.
Total Area
120
sq ft
Length × Widthπ × Radius²½ × Base × HeightTo get total square footage of a home or project:
For a rectangle, multiply length by width. A 12 ft by 10 ft room is 120 square feet. For multiple rooms, calculate each room separately and add the totals together.
Add 5% to 10% for most flooring projects. Use 10% to 15% for diagonal layouts, irregular rooms, tile cuts, or materials with pattern matching.
Yes. Use pi times radius squared for circles and one-half times base times height for triangles. This calculator supports rectangles, circles, and triangles in the same total.
Multiply total square feet, including waste, by price per square foot. For example, 220 sq ft at $3.50 per sq ft costs $770 before taxes, delivery, or labor.