Math Calculators
Root Calculator
Find the square, cube, or any nth root.
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About the Root Calculator
Find any root of a number. Enter the number and the root degree — 2 for square root, 3 for cube root, or any value — and the calculator returns the result, correctly handling negative numbers for odd roots. It's the counterpart to the exponent calculator for algebra and geometry work.
How to use the Root Calculator
- 01Enter your number and root degree.
- 02Read the result instantly — it recalculates as you type.
- 03Adjust the numbers to model different scenarios.
Frequently asked questions
How do I find a cube root?
Enter the number and set the root to 3. Unlike square roots, cube roots of negative numbers are real (∛−27 = −3).
What is an nth root?
The nth root of x is the number that, raised to the power n, equals x. It's the inverse of raising to the nth power.