Square Root Calculator
Square roots, with perfect squares flagged.
Runs in your browser. Nothing is uploaded — your input is processed on this device and discarded when you close the tab.
Square Root Calculator
How to use this tool
- Enter a number of zero or more.
- Press Generate to see its square root and whether it is a perfect square.
- Use Load sample for 144, or Clear to start again.
Worked example
The square root of 144 is 12, because 12 x 12 = 144, so 144 is a perfect square.
What this tool does not do / Limits
This tool gives the non-negative square root only. It does not show the negative root, and very large inputs are limited by browser number precision.
Frequently asked questions
What is a perfect square?
A number whose square root is a whole number, such as 144, whose root is exactly 12.
Why are negative numbers rejected?
A negative number has no real square root, so the tool asks for zero or more instead of inventing a result.
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