Square Footage Calculator
Calculate area for any shape - rooms, properties, and projects
Calculate Square Footage
Select your shape, enter measurements, and get instant area calculations
Dimensions
Cost Calculation (Optional)
Calculation Results
Enter your measurements and click "Calculate" to see results
How to Calculate Square Footage
Step-by-step guide for accurate measurements
1. Measure
Measure the length and width of your space using a tape measure. For irregular shapes, break them into simple rectangles.
2. Calculate
Multiply length × width for rectangles. For triangles: (base × height) ÷ 2. For circles: π × (diameter ÷ 2)²
3. Add Areas
For L-shaped or complex areas, calculate each section separately and add the results together.
4. Add Waste
Add 10% extra for materials to account for cuts, waste, and future repairs. Complex patterns may need 15-20%.
Area Calculation Formulas
Quick reference for different shapes
| Shape | Formula | Example |
|---|---|---|
| Rectangle | Length × Width | 12 ft × 10 ft = 120 sq ft |
| L-Shape | Area 1 + Area 2 | (12×10) + (6×5) = 150 sq ft |
| Triangle | (Base × Height) ÷ 2 | (10 × 8) ÷ 2 = 40 sq ft |
| Circle | π × (Diameter ÷ 2)² | π × (10 ÷ 2)² = 78.54 sq ft |
Professional Tips
Expert advice for accurate measurements
Room Measurements
- • Measure at floor level for flooring projects
- • Include closets and alcoves in room area
- • Subtract areas for permanent fixtures
- • Double-check all measurements
Wall Calculations
- • Measure height from floor to ceiling
- • Include doors and windows, then subtract
- • Account for baseboards and trim
- • Add 10% extra for paint coverage
Material Planning
- • Order 10-15% extra for waste
- • Consider pattern matching requirements
- • Account for future repairs
- • Check material coverage specifications
Need Help with Your Project?
Our experts can help you calculate materials and choose the perfect tiles for your space