FREE ONLINE TOOL

Free Root
Calculator

Free nth-root calculator with exact radical simplification, rational inputs, real and complex roots, Newton approximation, graphs and all-root visualization.

About Free Root Calculator

Calculate square, cube and arbitrary nth roots; simplify radicals exactly for integer and fractional inputs; solve xⁿ=a over the reals and complex numbers; inspect Newton iterations; and visualize all complex roots on the plane.

Workspace options

  • Radicand a
  • Index n
  • Maximum positive integer a

Available actions

  • ☾ Dark
  • Reset
  • Calculate ⁿ√a
  • √72
  • ∛−8
  • √(4/9)