Geometry Calculators

All geometry calculators in one place.

Solve triangle sides, angles, area, and perimeter from known values.

Calculate the area, circumference, radius, or diameter of a circle.

Calculate the area, perimeter, and diagonal of a square.

Calculate the area, perimeter, and diagonal of a rectangle.

Calculate the area and perimeter of a trapezoid from its sides and height.

Calculate the area, perimeter, and interior angles of any regular polygon.

Solve for a missing side of a right triangle using the Pythagorean theorem.

Coordinate Geometry

Calculate the distance between two points on a coordinate plane.

Find the midpoint between two coordinate points.

Calculate the slope of a line between two points.

Find the equation of a line from two points or a point and slope.