Geometry Calculator - Calculate Area & Perimeter
Free online calculator for various geometric shapes. Calculate area, perimeter, and more for common shapes like squares, rectangles, circles, and triangles.
Result will appear here
Understanding Geometry Calculations
Square
Area = side²
Perimeter = 4 × side
Rectangle
Area = length × width
Perimeter = 2(length + width)
Circle
Area = πr²
Circumference = 2Ï€r
Triangle
Area = ½ × base × height
Perimeter = a + b + c