Everyday utility

Root Calculator

Calculate the square root, cube root, or any nth root of a number. Use this Data and utilities tool to enter your numbers, review the result, and understand the key assumptions before making the next decision.

What you get
A focused calculator, clear explanation, common questions, and useful next tools.
Quick intro
Calculator
Result
Explanation
Common questions
Related tools

Calculator tool

How this calculator works
The result depends on the numbers you enter and the assumptions shown below.

The nth root of x is x^(1/n). Square root is x^(1/2); cube root is x^(1/3). Odd roots of negative numbers are real (e.g., cube root of −8 = −2); even roots of negative numbers are imaginary.

Review the inputs carefully and treat the output as an estimate. For decisions involving money, taxes, health, law, or security, compare the result with trusted professional guidance when needed.

Frequently asked questions

What is the difference between √ and ∛?

√ is the square root (2nd root), ∛ is the cube root (3rd root). Both are special cases of the nth root.