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Math Calculators

Nth Root Calculator

Verified formula Updated Jun 2026 Private — runs on your device

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Verified formula Private

nth root

2.000000

For general information only — not financial, tax, legal or medical advice. Verify before you rely on it.

How to use the Nth Root Calculator

The Nth Root Calculator works out your nth root in an instant. Enter number and root (n) and the result updates as you type — it is free, needs no sign-up, and runs entirely in your browser so your figures stay private.

  1. Enter the number.
  2. Enter the root (n).
  3. Read off your nth root — the calculator updates automatically, with no button to press.

Formula

The Nth Root Calculator uses the formula:

nth root = (Number)^(1 ÷ Root (n))

Worked example

For example, with number of 32 and root (n) of 5, the nth root is 2.000000.

Inputs used
Number 32
Root (n) 5
Results
nth root 2.000000

Results are estimates for educational use, not professional advice.

Frequently asked questions

The nth root of a number is the value that, raised to the power n, gives that number. The 5th root of 32 is 2 because 2⁵ = 32.

It equals the number raised to the power 1 ÷ n. So the cube root is x^(1/3) and the fourth root is x^(1/4).

Yes. Enter any non-negative number and the root you want; the calculator handles whole numbers and decimals alike.

Even roots of negative numbers are not real. To keep results real, this calculator accepts zero or positive numbers.

Enter the number. Enter the root (n). Read off your nth root — the calculator updates automatically, with no button to press.

Nth Root Table: nth root by Number

Reference table of nth root for Nth Root across a range of number values — exact, engine-computed figures you can read off at a glance.

1 min read

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