The fourth root of n is a number a such that 4√a = n. There are 2 possible 4th roots: positive root and negative root. In this calculator, calculate the fourth root of any positive number easily. For example, fourth root of 1 is ±1, 16 is ±2 and 81 is ±3.
The fourth root of n is a number a such that 4√a = n. There are 2 possible 4th roots: positive root and negative root. In this calculator, calculate the fourth root of any positive number easily. For example, fourth root of 1 is ±1, 16 is ±2 and 81 is ±3.