Area Calculator
Calculate the area and perimeter of common shapes: rectangle, square, circle, triangle, trapezoid, and ellipse.
Frequently Asked Questions
How to calculate area of a rectangle?
Area = Length x Width. For example, a rectangle with length 10 and width 5 has an area of 50 square units.
How to calculate area of a circle?
Area = pi x radius^2. For a circle with radius 7, the area is approximately 153.94 square units.