Geometry Calculators

Calculate dimensions, surface areas, volumes, and angles for common geometric shapes.

Calculate the area of a triangle using base and height, Heron's formula (three sides), or SAS.

Determine the boundary length of a triangle by entering the lengths of all three sides.

Solve a right-angled triangle's dimensions, angles, area, and perimeter given any two variables.

Calculate the area of a circle by providing its radius, diameter, or total circumference.

Find a circle's outer boundary circumference from its radius, diameter, or surface area.

Calculate the surface area, perimeter, and diagonal dimensions of any rectangle.

Find the area, perimeter, and diagonal length of a square from its side length or diagonal.

Calculate the volume, total surface area, and space diagonal of a three-dimensional cube.

Determine the capacity volume, lateral surface area, and total surface area of a cylinder.

Compute the three-dimensional surface area and volume of a perfect sphere from its radius.