Calculators
Square Root Calculator
Calculate the square root of a number from 0 to 1000000000000000 locally in your browser.
Enter a number from 0 to 1000000000000000 to see its square root and whether it is a perfect square. The calculation runs locally in your browser; your value is not uploaded or stored.
Find a square root without uploading anything.
Enter a number from 0 to 1000000000000000 to see its square root and whether it is a perfect square. Everything runs locally in your browser, so your value is not uploaded or stored.
Frequently Asked Questions
Everything you need to know about this tool, how it works, and privacy.
What is a square root?
The square root of a number n is the non-negative value that multiplies by itself to give n. For example, the square root of 144 is 12 because 12 x 12 = 144.
What does the square root calculator show?
Enter a number from 0 to 1000000000000000. The calculator returns its square root and reports whether it is a perfect square. For example, 144 gives 12 with perfect square Yes, while 2 gives about 1.41421356237 with perfect square No.
Which inputs are accepted?
Enter a number from 0 to 1000000000000000. Decimal values are accepted. Negative numbers, non-numeric text, and values above the limit show a clear error instead of a result.
Do my numbers stay private?
Yes. The calculation and copy action run locally in your browser. CodeASystem does not upload or store the value you enter.