Square Footage Calculator
Calculate the area of a rectangular space in square feet, square meters, and acres. Perfect for flooring, landscaping, and real estate.
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ft
Square Feet
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Square Meters —
Square Yards —
Acres —
How to Use This Calculator
- Enter the length and width in feet.
- Results instantly show area in square feet, square meters, square yards, and acres.
- For irregular rooms, break the area into rectangles and sum them.
Formula
Area (sq ft) = Length (ft) × Width (ft)
sq m = sq ft × 0.0929 | sq yd = sq ft ÷ 9 | acres = sq ft ÷ 43,560
Example
Example: 15 ft × 20 ft = 300 sq ft = 27.87 m² = 33.33 sq yd = 0.00689 acres.
Frequently Asked Questions
- Multiply the length by the width in feet. For example, a 15 ft × 20 ft room = 300 square feet.
- Multiply square feet by 0.0929. For example, 300 sq ft × 0.0929 = 27.87 m².
- One acre = 43,560 square feet.
- Calculate each room separately and add the results. For multi-shape areas, break the space into rectangles and sum them.
- Enter length and width in feet. The calculator converts to square meters, square yards, and acres automatically.