Cube Calculator
A cube has six identical square faces. Enter any one measurement to get the rest.
Cube
Formulas
V = s³
A = 6s²
face diagonal = s√2
space diagonal = s√3
Worked example
A cube that holds 1 liter
- 1 L = 1,000 cm³
- s = ∛1000 = 10 cm
Each edge is 10 cm; the surface area is 600 cm².
Space diagonal
The longest straight line inside a cube runs from one corner to the opposite corner: s√3 ≈ 1.732 × the edge. It tells you the longest rod that fits in a cubic box.