📐 Area Calculator
Calculate the area of any geometric shape. Select a shape, enter your measurements, and get instant results with formulas.
Area Formulas Reference
| Shape | Formula |
|---|---|
| Rectangle | A = length × width |
| Square | A = side² |
| Circle | A = πr² |
| Triangle | A = ½ × base × height |
| Trapezoid | A = ½(a + b) × height |
| Parallelogram | A = base × height |
| Ellipse | A = πab |
| Circle Sector | A = (θ/360) × πr² |