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Use this calculator to find the fourth root of positive numbers; it accepts inputs of positive real numbers for the radicand. There are 2 possible roots for fourth roots; the positive root and the negative root. Given a number *n*, the fourth root of *n* is a number *a* such that *a ^{4} = n*. Fourth roots is a specialized form of our common nth roots calculator also know as a radicals calculator.

This online calculator is set up specifically to calculate 4th root. To calculate any root of numbers use our nth root calculator.

- Fourth root of 1 is ±1
- Fourth root of 16 is ±2
- Fourth root of 81 is ±3
- Fourth root of 256 is ±4
- Fourth root of 625 is ±5
- Fourth root of 1296 is ±6
- Fourth root of 2401 is ±7
- Fourth root of 4096 is ±8
- Fourth root of 6561 is ±9
- Fourth root of 10000 is ±10

To calculate fractional exponents use our Fractional Exponents Calculator.

**Cite this content, page or calculator as:**

Furey, Edward "Fourth Roots Calculator" From *http://www.CalculatorSoup.com* - Online Calculator Resource.