√ Square Root & Power Calculator
Calculate square roots, cube roots, and any power instantly. Supports fractional exponents, negative numbers, and decimal results.
Enter a number to calculate
Common Square Roots
| Number | Square Root | Number | Square Root |
|---|---|---|---|
| 1 | 1 | 49 | 7 |
| 4 | 2 | 64 | 8 |
| 9 | 3 | 81 | 9 |
| 16 | 4 | 100 | 10 |
| 25 | 5 | 144 | 12 |
| 36 | 6 | 256 | 16 |
Frequently Asked Questions
What is a square root?
The square root of a number x is a value that, when multiplied by itself, equals x. For example, √9 = 3 because 3 × 3 = 9.
Can you take the square root of a negative number?
In real numbers, no. The square root of a negative number is an imaginary number. √(-9) = 3i in complex mathematics.