The square root of a number is the value that, multiplied by itself, gives that number, so the square root of 25 is 5. The browser-based square root calculator returns the root to high precision and tells you whether the number is a perfect square, all locally with nothing uploaded.
The square root of a number x is the value that produces x when multiplied by itself. The square root of 9 is 3 because 3 times 3 is 9, and the square root of 2 is about 1.41421 because that value squared is close to 2. Perfect squares like 4, 9, 16 and 25 have whole-number roots, while most other numbers have irrational roots that never terminate.
For irrational roots you usually want several decimal places, which is where a calculator beats guessing. The square root calculator gives a high-precision result, and it also tells you the square of your input and whether the number is a perfect square. It runs in your browser, so the numbers you enter never leave your device.
A perfect square is a number whose square root is a whole number, such as 16 whose root is 4.
Yes. It calculates the square root of whole numbers and decimals to high precision.
No. The calculation runs in your browser and nothing is sent to a server.