Geometry Calculations

Tools for calculating the area, volume, and perimeter of geometric shapes.

Circle Area & Circumference Calculator

Calculate circle area and circumference from radius, diameter, or circumference. Enter the known value and get instant, precise results.

Cone Volume Calculator

Enter radius and height to calculate the cone's volume.

Cube Volume Calculator

Enter the cube side length to calculate volume, surface area, and diagonals.

Cylinder Volume & Surface Area Calculator

Enter radius and height to calculate cylinder volume and surface area.

Irregular Polygon Area Calculator

Select the number of vertices and enter each coordinate pair in order.

Pythagorean Theorem Calculator

Choose a mode and enter the known sides to solve for the missing length.

Rectangle Area & Perimeter Calculator

Enter length and width to calculate the rectangle's area and perimeter.

Rectangular Prism Surface Area Calculator

Enter length, width, and height to calculate the prism's total surface area.

Sphere Volume & Surface Area Calculator

Enter the radius to calculate the sphere's volume and surface area.

Square Area & Perimeter Calculator

Enter the side length to calculate the square's area and perimeter.

Trapezoid Area Calculator

Enter the lengths of the two bases and the height to calculate area.

Triangle Area & Perimeter

Calculate the area and perimeter of different types of triangles using various formulas. Select the triangle type and calculation method, enter the known values, and get instant results with detailed steps.