Root Calculator

Nth root of a number.

Root Calculator helps you nth root of a number. Enter value and which root (n), review the breakdown, and use the guidance below to understand what the number means — and what it does not. What the Root calculator does Root Calculator is built for arithmetic, algebra, geometry, and number tools. Nth root of a number. You enter value and which root (n), then Simple Calculators computes the result instantly. Results use standard school and engineering formulas that run privately in your browser. How the math works Enter the Value and Which root (n): 2 for a square root, 3 for a cube root, and so on. The root is the number that, multiplied by itself n times, gives your value; the calculator works it out as value^(1 ÷ n). n must be a whole number, 1 or more. Negative values work for odd roots (the cube root of −8 is −2) but not for even roots, which have no real answer. The formula: ⁿ√x = x^(1/n). The nth root of x is the number that, multiplied by itself n times, gives x.