How this calculator works
Get the principal square root for any non-negative number instantly.
Formula
root = sqrt(x)
Step-by-step
- Enter a non-negative number.
- Click Calculate to compute the principal square root.
- Review the check line to verify root^2 equals your input.
Example
- Number = 144
sqrt(144) = 12
FAQs
Can I compute square root of a negative number here?
No. This calculator is for real-number results only, so input must be zero or greater.
What square root does this return?
It returns the principal (positive) square root.