Geometry Calculator

Pick a shape, then choose what you want to calculate: area, perimeter, volume, or surface area.

Available options depend on the selected shape.

Formulas

Square: area s², perimeter 4s
Rectangle: area lw, perimeter 2(l+w)
Circle: area πr², circumference 2πr
Cube: volume s³, surface area 6s²
Cuboid: volume lwh, surface area 2(lw+lh+wh)
Sphere: volume 4/3πr³, surface area 4πr²

Numoro calculators — clean, fast, and accurate.