📐 Geometry Calculator
Calculate area, perimeter, circumference, and volume for common geometric shapes
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About Geometry Calculator
A geometry calculator is an essential tool for students, teachers, engineers, architects, and anyone working with geometric shapes. Whether you need to calculate the area of a circle, find the perimeter of a rectangle, or determine the volume of a 3D shape, our free geometry calculator makes geometric calculations quick and accurate.
What Can You Calculate?
- 2D Shapes: Area and perimeter of circles, rectangles, squares, triangles, and polygons
- 3D Shapes: Volume and surface area of cubes, spheres, cylinders, and other 3D objects
- Angles: Calculate angles between lines, in triangles, and in circles
- Coordinates: Work with coordinate geometry, distances, and midpoints
- Special Shapes: Calculate properties of ellipses, parabolas, and other conic sections
Common Geometry Formulas
Circle: Area = π × r², Circumference = 2 × π × r
Rectangle: Area = length × width, Perimeter = 2 × (length + width)
Square: Area = side², Perimeter = 4 × side
Triangle: Area = ½ × base × height
Sphere: Volume = (4/3) × π × r³, Surface Area = 4 × π × r²
Geometry Basics
Geometry is a branch of mathematics that deals with shapes, sizes, properties of space, and the relationships between different figures. It includes the study of points, lines, angles, surfaces, and solids. Geometry is fundamental in many fields including architecture, engineering, computer graphics, and physics.
Our geometry calculator supports calculations for common 2D and 3D shapes, helping you solve geometry problems quickly and accurately. For more specialized calculations, explore our collection of dedicated geometry calculators for triangles, circles, polygons, and 3D shapes.