Overview
What Is a Root Calculator?
This tool calculates the nth root of a number - square root (n=2), cube root (n=3), or any other root.
Calculate square roots and nth roots instantly.
This tool calculates the nth root of a number - square root (n=2), cube root (n=3), or any other root.
Useful for algebra homework and general root calculations.
Input the value you want the root of.
Input 2 for square root, 3 for cube root, etc.
The result updates automatically.
The square root of a number x is the value that, multiplied by itself, equals x.
Yes, enter 3 as the root degree for cube root calculations.
No, even roots of negative numbers aren't defined in real numbers - this calculator will show an error.
Yes, odd roots of negative numbers are defined and return a negative result.
The nth root of x is the number that, raised to the power n, equals x.
Roots are the inverse operation of exponents - taking the nth root is equivalent to raising to the power 1/n.
No, calculations happen entirely in your browser.
This calculator is designed for whole-number root degrees like 2, 3, 4, etc.
Geometry (finding side lengths), physics, and general algebra all commonly use root calculations.
Yes, completely free with no sign-up required.