It asks for the number that, when raised to the power of 3, equals 9.
What is the Cube Root of 9?
The cube root of 9 is 2.0800838231. Calculate another value or review the exact form, nearby perfect powers, and verification.
Answer
Cube Root∛9 = 2.0800838231
CalculatedNon-perfect cubeIrrational
Exact form∛9
Perfect cubeNo
Number typeIrrational
Verification2.08008382313 ≈ 9
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How the answer is calculated
We solve x3 = 9. The resulting value is x = 2.0800838231.
Verification: 2.08008382313 ≈ 9.
Nearest Perfect cubes
| Position | Base | Value |
|---|---|---|
| Lower or equal | 2 | 8 |
| Upper or equal | 3 | 27 |
Number properties
Is 9 a perfect cube?
No. Its cube root is not a whole number.
Is the cube root rational or irrational?
∛9 is irrational because 9 is not a perfect cube.
Visual guide
Cube Root function graph
See how the result changes as the input moves across positive and negative values. Square roots are shown for non-negative inputs; cube roots continue through negative inputs.
Common questions
Frequently asked questions
The decimal answer is rounded for display; the radical form remains exact.
Yes. Enter any supported number in the calculator above and select Calculate.