The square root of 9 is 3.
The square root of 9 is 3.
Because 3 × 3 = 9, 9 is a perfect square and its root is a whole number.
You can check it by squaring the result: 3² ≈ 9.
| √9 | = 3 |
| 3² | = 9 |
| ∛9 | = 2.080084 |
| Number | Square root | Note |
|---|---|---|
| 5 | 2.236068 | |
| 6 | 2.44949 | |
| 7 | 2.645751 | |
| 8 | 2.828427 | |
| 9 | 3 | this page |
| 10 | 3.162278 | |
| 11 | 3.316625 | |
| 12 | 3.464102 |
The square root of 9 is 3.
Yes. 3 × 3 = 9.
Rational, because it is the whole number 3.
The cube root of 9 is about 2.080084.
Yes. Use the calculator on this page, or open the full free Scientific Calculator with memory, history and keyboard support.