Calculate square root, cube root, nth root, and simplify radicals with our free root calculator
Calculate the square root of a number
Calculate the cube root of a number
Calculate the nth root of a number
Simplify a square root to its simplest radical form
A root of a number is a value that, when raised to a certain power, gives the original number. The most common roots are square roots (2nd root) and cube roots (3rd root). Roots are the inverse operation of exponentiation.
Square root (√) finds the number that, when squared, equals the original number. Cube root (³√) finds the number that, when cubed, equals the original number. Nth root finds the number that, when raised to the nth power, equals the original number.
The nth root of a number x is:
Here are several everyday situations that show how easy it is to use our root calculator.
These examples show how our root calculator can handle:
You can adapt any real-life situation involving roots to one of these patterns and let the calculator do the work for you.