By Zencalcy Editorial TeamLast reviewed About us
Compute the nth root of any number for any degree n ≥ 2. Negative radicands return real results for odd degrees (like ∛−8) and a clear explanation for even degrees instead of a wrong answer.
Any-degree root with correct handling of negative radicands.
ⁿ√x
| Symbol | Meaning |
|---|---|
| x | Radicand (the number under the root) |
| n | Root degree, whole number ≥ 2 |
⁴√81 = 3, ⁵√(−32) = −2, and ²√144 = 12 (same as square root).
Continue with the Percentage Calculator, all math calculators, or browse the full calculator directory.
No real answer exists (e.g. ⁴√−16). The calculator explains this rather than returning NaN.
Click to use the Absolute Value Calculator and get instant results.
Click to use the Basic Calculator and get instant results.
Click to use the Scientific Calculator and get instant results.
Click to use the Exponent Calculator and get instant results.
Click to use the Square Root Calculator and get instant results.
Click to use the Cube Root Calculator and get instant results.
Content updated: September 2026