Cube (x³) Calculator
Raise any number to the third power and see the intermediate squaring step.
About Cube (x³) Calculator
Cubing a number means raising it to the third power: x³ = x × x × x. This gives the volume of a cube with side length x. Negative numbers cubed stay negative (e.g. (−3)³ = −27).
Formula
Cube
x³ = x × x × x
- x
- The number to cube
Worked example
With the default values below, Cube (x³) Calculator returns x³ (Cube) of 343.000000. Change any input above and every figure here is recalculated in your browser.
Inputs used
- Number (x)
- 7
Results
- x³ (Cube)
- 343.000000
- x² (intermediate)
- 49.000000
Step by step
- 1Square the number first
- 2Multiply by x again to get the cube
- 3Result= 343
Assumptions and limits
- The result is derived only from the single input listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 6 decimal places, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
Is the cube of a negative number negative?
Yes. Negative × negative = positive, then positive × negative = negative. So (−3)³ = 9 × (−3) = −27.
What is the relationship between cube and cube root?
They are inverse operations. If x³ = y, then the cube root of y is x. For example, 5³ = 125 and ∛125 = 5.