Cube Calculator
Your details
Mode
i
Choose "Cube a number" to compute n³, or pick a geometry mode to enter any one cube property and get the rest.
Cube a number (n³)
Cube geometry: from edge length
Cube geometry: from volume
Cube geometry: from surface area
Cube geometry: from face diagonal
Cube geometry: from space diagonal
Number
i
Any real number including negatives, fractions, and decimals. Cubing preserves the sign.
Reset
Cube (n³)
27
Cube root (∛n)
1.44225
n squared (n²)
9
Perfect cube?
No
▸
3 cubed is 27.
Cubing multiplies a number by itself three times: n × n × n, the same as raising it to the power 3.
The result is positive because cubing always keeps the sign of the original number.
n squared is 9, so multiplying that by 3 once more gives the cube.
If n is an edge length, n³ is the volume of a cube with that edge, and 6n² is its total surface area.
Next step
Switch to "Cube geometry" mode to see all five geometric properties at once.
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