4th Root of 256
The 4th root of 256 is 4, since 4⁴ = 256.
How to use this tool
- Enter number and root (n) in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your result and the full breakdown beneath it.
Calculate the 4th root of 256, which equals 4.
Frequently asked questions
- How do you calculate the nth root?
- The nth root of x equals x raised to the power of 1/n. For example, the cube root of 27 is 27^(1/3) = 3.