Square Footage Calculator
Calculate area in square feet, meters, or yards for any room shape
📐 Multiple Shapes
🌍 Metric/Imperial
📊 Visual Diagrams
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square feet
Total Area
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sq ft
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sq m
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sq yd
How to Calculate Square Footage
Rectangle/Square
Area = Length × Width
10 ft × 12 ft = 120 sq ft
Triangle
Area = (Base × Height) ÷ 2
(8 ft × 6 ft) ÷ 2 = 24 sq ft
Circle
Area = π × Radius²
π × (5 ft)² ≈ 78.54 sq ft
L-Shape
Area = (L₁ × W₁) + (L₂ × W₂)
(10×8) + (6×4) = 104 sq ft
Common Applications
- Flooring: Calculate carpet, tile, or hardwood needed
- Painting: Estimate wall area for paint coverage
- Landscaping: Measure lawn area for sod or fertilizer
- Real Estate: Compare property sizes accurately
Frequently Asked Questions
How do you calculate square footage for irregular shapes?
Break the shape into smaller regular shapes (rectangles, triangles), calculate each area separately, then sum them together. Our L-Shape calculator demonstrates this method.
What’s the difference between square feet and linear feet?
Square feet measure area (length × width), while linear feet measure straight-line distance. For example, a 10 ft × 10 ft room is 100 sq ft but has 40 linear feet of perimeter.
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