Cube Formulas
3D Solids
Cube
- Volume
- V = a3
- Surface area
- SA = 6a2
- Space diagonal
- d = a√3
- a edge length
Cube formulas explained
A cube has six identical square faces, twelve equal edges and eight vertices. Below are all the cube formulas with what each letter means, a worked example and a free calculator.
- Volume:
V = a³ - Surface area:
SA = 6a² - Space diagonal:
d = a√3
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Worked example: volume of a cube
Given Edge a = 4 cm, substitute the values into each cube formula:
- V = 4³ = 64 cm³
- SA = 6 × 4² = 96 cm²
- d = 4 × √3 = 6.93 cm
Cube Formula SheetFormulas, variables, a worked example and practice questions with answers.Download PDFOpen
Cube formulas FAQ
What is the formula for the volume of a cube?
The volume of a cube is V = a³, where a is the edge length.
What is the formula for the surface area of a cube?
The surface area of a cube is SA = 6a², where a is the edge length.
What is the formula for the space diagonal of a cube?
The space diagonal of a cube is d = a√3, where a is the edge length.
Can I download the cube formulas as a PDF?
Yes. Use the Download PDF button on this page for a free printable cube formula sheet with a worked example and practice questions.