Root Calculator
Square root, cube root, or any nth root.
What is a root calculator?
A root calculator finds square roots, cube roots and nth roots. Example: the square root of 144 is 12.
How to use it
Enter a number and the root degree (2 for square root, 3 for cube root), then tap Calculate Root.
Formula
The nth root of a number is the value that, raised to the power n, gives the original number. The square root is the 2nd root, and the cube root is the 3rd root.
Example
√144 = 12, because 12 × 12 = 144. For a cube root, the cube root of 27 is 3, because 3 × 3 × 3 = 27.
Frequently Asked Questions
What is the square root of 144?
12.
What is the cube root of 27?
3.
Can I take the square root of a negative number?
No, a negative number has no even root.
More calculators: Math Tools and All Tools.