Nth Root Calculator
Calculate the nth root of a number for any root index n (square, cube, fourth root, and beyond).
Formula: ⁿ√x = x^(1/n)
About Nth Root Calculator
Nth Root Calculator is a free online calculator that gives you an instant, accurate result as you type. Calculate the nth root of a number for any root index n (square, cube, fourth root, and beyond).
The calculation uses the standard formula ⁿ√x = x^(1/n) and updates live with every change to the inputs. Everything runs client-side in your browser — fast, private, and free to use as often as you like.
The nth root of x is the same as x raised to the power 1/n.
Frequently Asked Questions
Is Nth Root Calculator free to use?
Yes. Nth Root Calculator is completely free, with no sign-up, no downloads, and no usage limits. You can use it as many times as you like on any device with a web browser.
How accurate is this calculator?
The calculator applies the standard formula (ⁿ√x = x^(1/n)) with full floating-point precision and rounds only the displayed result. For most practical purposes the results are exact.
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