Calculates the area of various common 2D shapes (square, rectangle, circle, triangle etc.).
Start with your values, or try a preset.
Enter Choose a Shape:, Side of Square:, Length of Rectangle:, Width of Rectangle:, Radius of Circle:, Base of Triangle:, and Height of Triangle: in the units shown.
Read Area of Triangle:, Area of Circle:, Area of Rectangle:, Area of Square:, and Total Area: in the results panel. Results update as you change the inputs.
Choose a preset to load an example, then adjust the values for your situation.
See the inputs and their calculated results.
Choose a Shape:: Square; Side of Square:: 7 meters; Length of Rectangle:: 10 meters; Width of Rectangle:: 6 meters; Radius of Circle:: 3 meters; Base of Triangle:: 8 meters; Height of Triangle:: 4 meters
Area of Triangle:: 0 square meters; Area of Circle:: 0 square meters; Area of Rectangle:: 0 square meters; Area of Square:: 49 square meters; Total Area:: 49 square meters
Choose a Shape:: Rectangle; Side of Square:: 5 meters; Length of Rectangle:: 12 meters; Width of Rectangle:: 8 meters; Radius of Circle:: 3 meters; Base of Triangle:: 8 meters; Height of Triangle:: 4 meters
Area of Triangle:: 0 square meters; Area of Circle:: 0 square meters; Area of Rectangle:: 96 square meters; Area of Square:: 0 square meters; Total Area:: 96 square meters
Choose a Shape:: Circle; Side of Square:: 5 meters; Length of Rectangle:: 10 meters; Width of Rectangle:: 6 meters; Radius of Circle:: 5 meters; Base of Triangle:: 8 meters; Height of Triangle:: 4 meters
Area of Triangle:: 0 square meters; Area of Circle:: 78.53981634 square meters; Area of Rectangle:: 0 square meters; Area of Square:: 0 square meters; Total Area:: 78.53981634 square meters
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