Square Footage Calculator
Calculate area in square feet for rooms, floors, walls, and properties with unit conversions
Calculate Square Footage
Choose the shape that best matches your area
Number of identical areas to calculate (e.g., multiple rooms)
Enter material or construction price to calculate total cost
Area Results
Conversion: 1 sq ft = 144 sq inches = 0.111 sq yards = 0.0929 sq meters
Shape: Rectangle
Formula: Length × Width
Area Analysis
Practical Examples
Living Room Flooring
Rectangle: 16 ft × 12 ft
Calculation: 16 × 12 = 192 sq ft
Cost example: $4/sq ft × 192 sq ft = $768
Circular Patio
Circle: 10 ft radius
Calculation: π × 10² = 314.16 sq ft
Cost example: $6/sq ft × 314.16 sq ft = $1,885
Triangular Garden
Triangle: 20 ft base × 15 ft height
Calculation: ½ × 20 × 15 = 150 sq ft
Cost example: $2/sq ft × 150 sq ft = $300
Area Conversion Reference
1 Square Foot =
144 square inches
0.111 square yards
0.0929 square meters
1 Square Meter =
10.764 square feet
10,000 square centimeters
1 Acre =
43,560 square feet
4,840 square yards
Typical Room Sizes
Measurement Tips
Always measure to the longest and widest points
For flooring, subtract areas for fixtures and cabinets
Add 10% extra for waste and cuts
Use consistent units throughout measurement
Understanding Square Footage & Area Calculations
What is Square Footage?
Square footage is a measurement of area that represents the number of square units (typically square feet) that fit inside a given space. It's essential for construction, real estate, flooring, painting, and landscaping projects.
Common Applications
- •Flooring and carpet installation
- •Paint coverage estimation
- •Property valuation and real estate
- •Landscaping and gardening projects
Shape Formulas
Rectangle:
Area = Length × Width
Circle:
Area = π × Radius²
Triangle:
Area = ½ × Base × Height
Trapezoid:
Area = ½ × (Base₁ + Base₂) × Height