What is the Square Root Calculator?
Calculate the square root of any number, and check whether it is a perfect square. From percentages and fractions to logarithms and quadratic equations, these math calculators show exact results — using arbitrary-precision integers wherever whole-number answers can get very large.
How to use the Square Root Calculator
- Enter your number.
- Results update automatically as you type; you can also press Calculate.
- Read the output: square root, perfect square?, simplified radical.
- Use the 📊 chart to see the result visually, then copy or share it.
Formula and method
Worked example
With number = 200, the Square Root Calculator returns square root: 14.1421356237; perfect square?: No; simplified radical: 10√2.
Tips for better results
- Use the formula section on each page to check your homework method, not just the answer.
- For very large factorials, combinations and base conversions we use exact big-integer math.
- Floating-point results are rounded to 12 significant digits to remove binary noise.
Frequently asked questions
What does the Square Root Calculator do?
Calculate the square root of any number, and check whether it is a perfect square.
How is it calculated?
The Square Root Calculator uses this method: √x = x^(1/2).
Can you show an example?
With number = 200, the Square Root Calculator returns square root: 14.1421356237; perfect square?: No; simplified radical: 10√2.
Is the Square Root Calculator accurate?
Yes. It uses standard formulas and exact constants, and the results are verified by our automated test suite. Values are displayed to up to 12 significant digits.
Is this tool free and private?
Yes — the Square Root Calculator is completely free with no sign-up, and it runs entirely in your browser, so the values you enter are never uploaded to our servers.
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