Area Calculator

Calculate Area

Results

Enter dimensions and click calculate to see results

Understanding Area Calculations

Basic Shapes

  • Circle: πr²
  • Square: s²
  • Rectangle: l × w
  • Triangle: (b × h) ÷ 2

Advanced Shapes

  • Trapezoid: [(a + b) × h] ÷ 2
  • Parallelogram: b × h
  • Ellipse: π × a × b

Tips

  • Units must be consistent
  • All dimensions must be positive
  • Check your measurements twice
  • Round answers appropriately