➗ Math
Square Root Calculator
The square root of a number is the value that, multiplied by itself, gives the original number. Squares and square roots appear everywhere from geometry to standard deviation.
How it works
Number
Root degree
Square root
Nth root
Cube root
Number squared
Frequently asked questions
How do I use the Square Root Calculator?
Fill in the fields above — the result recalculates instantly as you type. Everything runs in your browser, so the values you enter are never collected or stored.
Is this calculator free?
Yes. It is completely free, requires no account, and works on phones, tablets and desktops.