Geometry

Area, perimeter, volume, Pythagoras

Circle Calculator (area, circumference)

From the radius, get a circle's diameter, circumference and area.

From length and width, get a rectangle's area, perimeter and diagonal.

Find a triangle's area from its base and height.

Find the hypotenuse of a right triangle from its two legs.

Find the volume and surface area of a cylinder from its radius and height.

Find the volume and surface area of a sphere from its radius.

The volume of a cone from its base radius and height.

The area of a trapezoid from its two parallel sides and height.

The volume and surface area of a cube from the length of one side.

The area and approximate perimeter of an ellipse from its two semi-axes.

The area of a triangle from the lengths of its three sides.

The volume of a square pyramid from its base side and height.

The area and perimeter of a regular hexagon from its side length.

The area and side length of a rhombus from its two diagonals.

The area and arc length of a circular sector from radius and angle.

The area of a parallelogram from its base and height.

The area and perimeter of a regular polygon from sides and side length.