Geometry

Browse our collection of geometry calculators.

Calculate triangle area using base and height, or Heron's formula

Calculate circle area and circumference from radius or diameter

Calculate rectangle area and perimeter from length and width

Calculate square area, perimeter, and diagonal from side length

Calculate parallelogram area and perimeter from base and height

Calculate trapezoid area using parallel sides and height

Calculate ellipse area and circumference from semi-major and semi-minor axes

Calculate regular polygon area, perimeter, and interior angles

Find missing side lengths in right triangles using the Pythagorean theorem

Calculate cube volume, surface area, and space diagonal from side length

Calculate rectangular prism volume and surface area from dimensions

Calculate arc length and sector area from radius and central angle

Calculate distance between points and find midpoint coordinates

Find line equations from points, slope, or intercepts

Calculate cylinder volume and surface area from radius and height

Calculate cone volume and surface area from radius and height

Calculate sphere volume and surface area from radius

Calculate the volume and surface area of a pyramid with different base shapes (square, rectangle, triangle).

Calculate all six trigonometric functions (sine, cosine, tangent, cosecant, secant, cotangent) for any angle.