Geometry

Areas, volumes, and common geometric helpers.

Circle area calculator

Compute the area of a circle from its radius, with unit conversion.

Compute the circumference of a circle (C = 2·π·r), with unit conversion.

Compute the volume of a cone from radius and height (V = 1/3·πr²h), with unit conversion.

Compute total surface area of a cylinder (A = 2·π·r·(r + h)), with unit conversion.

Compute the volume of a cylinder from radius and height (V = πr²h), with unit conversion.

Compute the hypotenuse length from two perpendicular sides using √(a² + b²).

Compute the area of a rectangle from length and width, with unit conversion.

Compute the perimeter of a rectangle (P = 2·(L + W)), with unit conversion.

Compute the surface area of a sphere (A = 4·π·r²), with unit conversion.

Compute the volume of a sphere from its radius (V = 4/3·πr³), with unit conversion.

Compute the area of a trapezoid from both bases and height, with unit conversion.

Compute the area of a triangle from base and height, with unit conversion.