Calculate the volume, surface area, and space diagonal of a cube from its edge length.
The Cube Calculator finds the key measurements of a cube — a 3D shape with six equal square faces — from a single edge length.
It is handy for boxes, dice, storage cubes, and any perfectly cube-shaped object or space.
Volume = a³. Surface Area = 6a². Space Diagonal = a√3.
A cube with an edge length of 5 has a volume of 125 cubic units, a surface area of 150 square units, and a space diagonal of about 8.66 units.
Volume = side³; Surface area = 6 × side²; Diagonal = side × √3.
A cube has all sides equal length; a cuboid (rectangular box) can have three different edge lengths.
Dice, sugar cubes, and some storage boxes are common everyday examples of near-perfect cubes.