General

Area Calculator

Calculate area for rectangles, triangles, circles, trapezoids, parallelograms, and ellipses from their dimensions.

Distance Calculator

Calculate the straight-line distance and midpoint between two coordinate points in 2D or 3D space.

Ellipse Calculator

Calculate the area, approximate perimeter, eccentricity, and focal distance of an ellipse from its semi-axes.

Endpoint Calculator

Find the missing endpoint of a line segment from one known endpoint and the midpoint.

Hexagon Calculator

Calculate area, perimeter, diagonals, inradius, and circumradius of a regular hexagon from side length.

Midpoint Calculator

Find the midpoint between two coordinate points in 2D or 3D space with distance calculation.

Octagon Calculator

Calculate area, perimeter, diagonals, inradius, and circumradius of a regular octagon from side length.

Pentagon Calculator

Calculate area, perimeter, diagonal, inradius, and circumradius of a regular pentagon from side length.

Perimeter Calculator

Calculate perimeter for squares, rectangles, triangles, circles, parallelograms, and trapezoids.

Polygon Calculator

Calculate area, perimeter, interior and exterior angles, and diagonal count for any regular polygon.

Rectangle Calculator

Calculate area, perimeter, and diagonal of a rectangle from width and height.

Rhombus Calculator

Calculate area, perimeter, diagonals, and angles of a rhombus from side and angle or diagonal inputs.

Right Triangle Calculator

Solve a right triangle for missing sides, angles, area, and perimeter from any two known measurements.

Surface Area Calculator

Calculate total and lateral surface area for cubes, spheres, cylinders, cones, and rectangular prisms.

Trapezoid Area Calculator

Calculate the area, perimeter, and median of a trapezoid from its parallel sides, height, and leg lengths.