Area Calculator
Whether you are measuring a room, planning a garden, or estimating material needs, this area calculator handles the three most common shapes: rectangles, circles, and triangles. Enter your dimensions and get the area in multiple units including square feet, square meters, square yards, and acres.
Area formulas used:
- Rectangle: A = length × width
- Circle: A = πr² (pi times radius squared)
- Triangle: A = ½ × base × height
Unit conversions provided:
- 1 square foot (ft²) = 0.0929 square meters (m²)
- 1 square yard (yd²) = 9 square feet (ft²)
- 1 acre = 43,560 square feet (ft²)
For construction projects, the rectangle formula covers most room and wall calculations. The circle formula is essential for round patios, pools, and columns. The triangle formula helps with gabled walls and oddly shaped lots.