Square Feet Calculator
Calculate the square footage area of rectangles, triangles, and circles with multi-unit outputs.
Calculated Area
Total Square Footage
120.00 sq ft
Equivalent Units
| Square Yards (sq yd) | 13.33 sq yd |
| Square Meters (m²) | 11.15 m² |
| Square Inches (sq in) | 17,280 sq in |
Area Formulas for Standard Shapes
Area represents the two-dimensional space bound within an boundary. Individual shapes rely on unique geometric formulas:
1. Rectangles / Squares:
Area = Length * Width
2. Circles:
Calculated based on radius ($r = \text{diameter} / 2$):
Area = π * r^2
3. Triangles:
Area = (Base * Height) / 2
Unit Conversion Factors (from Sq Ft):
- Square Yards: sq ft / 9
- Square Meters: sq ft * 0.092903
- Square Inches: sq ft * 144