Square Footage Calculator
Calculate area measurements for rooms, flooring, construction, and property planning
Rectangle
Circle
Triangle
Trapezoid
Rectangle Area
Enter dimensions to calculate
Circle Area
Enter radius to calculate
Triangle Area
Enter base and height to calculate
Trapezoid Area
Enter dimensions to calculate
About Square Footage Calculation
Square footage is a measurement of area used in real estate, construction, and interior design. It represents the total two-dimensional space within a set of boundaries, typically measured in square feet (sq ft) in the United States.
Common Uses
- Real estate - Determining property size and value
- Flooring - Calculating materials needed for carpets, hardwood, or tile
- Painting - Estimating paint requirements for walls and ceilings
- Construction - Planning building dimensions and material quantities
- Landscaping - Measuring lawn areas for sod or irrigation
Calculation Formulas
Our calculator uses standard geometric formulas:
- Rectangle: Area = Length × Width
- Circle: Area = π × Radius²
- Triangle: Area = (Base × Height) ÷ 2
- Trapezoid: Area = ((Base A + Base B) ÷ 2) × Height
Tip: For complex spaces, divide them into simple shapes, calculate each area separately, then sum the results.
Unit Conversion Reference
| Unit | Square Feet | Square Meters | Square Yards |
|---|---|---|---|
| 1 square foot | 1 | 0.0929 | 0.1111 |
| 1 square meter | 10.764 | 1 | 1.196 |
| 1 square yard | 9 | 0.8361 | 1 |