About the cube calculator
A cube has six square faces, twelve equal edges and eight corners. Everything follows from the edge length a: the volume is a³, the surface area is 6a², the face diagonal is a√2 and the space diagonal, corner to opposite corner through the middle, is a√3.
Formulas
| Volume | V = a³ |
| Surface area | S = 6a² |
| Space diagonal | d = a√3 |
| Face diagonal | f = a√2 |
Frequently asked questions
How do I find the edge of a cube from its volume?
Take the cube root: a = ∛V. A 1000 cm³ cube has 10 cm edges.
What is the space diagonal of a cube?
d = a√3 ≈ 1.732·a.