Nth Root Calculator
Fill in the values and the answer updates as you type.
How the Nth Root Calculator works
The nth root of a number is the value that gives the number when multiplied by itself n times. Even roots of negative numbers are not real, so they show a dash. Odd roots of negatives work, such as the cube root of −27 = −3. Example: with the default values, root comes to 4.
Inputs and results
The Nth Root Calculator takes 2 inputs and gives 3 results.
What you enter
- Number — starts at 256.
- Root degree — starts at 4.
What you get
- Root
- Check: root raised to the degree
- Nearest whole number
Example: Nth Root Calculator with the starting values
With number 256 and root degree 4, the calculator returns:
| Root | 4 |
|---|---|
| Check: root raised to the degree | 256 |
| Nearest whole number | 4 |
Change any value above and the results update straight away.
Nth Root Calculator FAQ
How do I use the Nth Root Calculator?
Enter number and root degree in the fields, then read root, check: root raised to the degree and nearest whole number in the result panel. The answer updates as you type, and you can press Calculate or Enter to refresh it. Use “Copy link” to share your exact numbers with someone else.
What does the Nth Root Calculator calculate?
Find square roots, cube roots, and any other root. It returns root, check: root raised to the degree and nearest whole number from the 2 values you provide.
What values does the Nth Root Calculator start with?
It opens with number 256 and root degree 4 so you can see a working result straight away. Replace them with your own numbers, or press Reset to return to these starting values.
Is the Nth Root Calculator free and private?
Yes. It is free, needs no account, and runs in your browser, so nothing you type is sent to or stored on our servers. See the Privacy Policy for details.
Can I rely on the Nth Root Calculator for important decisions?
Treat the result as a well-rounded estimate. Real situations often have details a general calculator cannot know, so confirm important decisions with a qualified professional. See the Disclaimer for more.