Square Root Calculator
Find the square root of any non-negative number to high precision, along with a few related figures that often come up at the same time. Enter a number and the calculator returns its square root, its cube root, its square, and tells you whether the number is a perfect square with a whole-number root. This is handy for geometry, physics problems, standard-deviation work, or just checking homework. Because square roots of most numbers are irrational, the result is shown to many decimal places so you can round as needed. The calculator only accepts non-negative inputs for the square root, since real square roots of negative numbers do not exist. Everything is computed instantly and locally in your browser.
How to use Square Root Calculator
- Enter any number.
- Read the square root to high precision.
- Check the cube root, square and perfect-square status.
Frequently asked questions
How precise is the square root result?
It computes the root to high decimal precision, so irrational roots like the square root of 2 are shown to many places.
Can it find the cube root too?
Yes. Alongside the square root it also gives the cube root and the square of the number you enter.
How does it check for a perfect square?
It tests whether the square root is a whole number, and if so it flags the input as a perfect square.
What is Square Root Calculator?
Find the square root of any non-negative number to high precision, along with a few related figures that often come up at the same time. Enter a number and the calculator returns its square root, its cube root, its square, and tells you whether the number is a perfect square with a whole-number root.
Is Square Root Calculator free to use?
Yes. Square Root Calculator is completely free, with no sign-up and no usage limits.
Does Square Root Calculator work in a web browser?
Yes. Square Root Calculator runs in any modern web browser. There is nothing to download or install.
Is my data private with Square Root Calculator?
Yes. Square Root Calculator runs entirely on your device in your browser, so nothing you enter is uploaded to a server.
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