Square Footage Calculator
Convert dimensions in feet to total area (sq ft)
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How to Calculate Square Feet (ft to sq ft)
Calculating the square footage of a rectangular space is a fundamental task for home improvement projects, landscaping, and flooring installations. Square footage represents the total area of a two-dimensional surface.
The Basic Formula
Area (sq ft) = Length (ft) × Width (ft)
Real-World Examples
- Standard Bedroom: If a room is 12 feet long and 10 feet wide, the area is 120 sq ft (12 × 10).
- Large Patio: A patio measuring 20 feet by 15 feet equals 300 sq ft.
- Walk-in Closet: A small 5-foot by 4-foot closet equals 20 sq ft.
Tips for Accurate Measurement
When measuring for materials like tile or hardwood, it is standard practice to add a 10% waste factor. This accounts for cuts, mistakes, and the specific layout of your space. To do this, multiply your total square footage by 1.10.
Calculating Complex Shapes
If your room is not a perfect rectangle, divide the floor plan into smaller rectangles. Calculate the square footage of each section individually and then add them together to get the grand total.