Square Root Calculator
Find the square root of a number instantly.
Square root: 8
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How It Works
Enter a non-negative number to see its square root, updated instantly.
√x is the number that, multiplied by itself, equals x
Example
The square root of 64 is 8, since 8 × 8 = 64.
Frequently Asked Questions
- Why can't I find the square root of a negative number?
- No real number multiplied by itself gives a negative result, so negative numbers have no real square root — only a complex one, which this tool does not compute.
- Is the square root always a whole number?
- No — only perfect squares (like 4, 9, 16, 25) have whole-number square roots. Most numbers have irrational square roots.
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