Square Root Calculator
Find the square root of any non-negative number.
Calculate
Enter your values below.
Result
Square root
0
Formula used
√x, such that √x × √x = x
Example: √144 = 12.
How to use this calculator
- Enter Number.
- Press Calculate to see your result instantly.
FAQ
Frequently asked questions
Why can't I enter a negative number?
The square root of a negative number isn't a real number — it involves imaginary numbers, which this calculator doesn't cover.
What is the square root of 0?
0.
What is the square root of 1?
1.
How accurate is the result?
Results are shown to several decimal places for non-perfect squares.