Square Footage Calculator
Calculate rectangle, square, triangle, and circle areas in multiple units.
- m²
- 20
- ft²
- 215.28
Area for each shape
Choose a rectangle, square, triangle, or circle. The tool converts the chosen linear unit and shows area in both m² and ft².
Cost estimate
The optional price is applied per square meter. Material projects may need extra allowance for cuts, waste, or installation.
Frequently asked questions
Does the circle use diameter or radius?
The input uses radius; area is calculated as π × radius².
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