Cube Root Calculator

Your details

Forward: given x find its nth root. Reverse: given the root y find x = y^n.
Use 3 for a cube root, 2 for a square root, 4 for a fourth root, and so on. Even degrees require a non-negative number.
The number whose nth root you want. Negative values are allowed for odd root degrees.
nth root
3
Verification (root^n)27
Perfect power?Yes, 3^3 = 27
Root typeCube root

The cube root of 27 is 3.

  • The result is positive because odd-degree roots preserve the sign of the input.
  • 27 is a perfect power: its cube root is the whole number 3.
  • Geometrically: if a cube has a volume of 27 cubic units, each edge is 3 units long.

Next stepTry the reverse-solve mode: enter 3 as the root value and confirm it returns 27.

 = Powered by OnlyCalculators