Math.cbrt()
Baseline Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since July 2015.
The Math.cbrt() static method returns the cube root of a number. That is
Try it
console.log(Math.cbrt(-1));
// Expected output: -1
console.log(Math.cbrt(1));
// Expected output: 1
console.log(Math.cbrt(Infinity));
// Expected output: Infinity
console.log(Math.cbrt(64));
// Expected output: 4
Syntax
js
Math.cbrt(x)
Parameters
x-
A number.
Return value
The cube root of x.
Description
Because cbrt() is a static method of Math, you always use it as Math.cbrt(), rather than as a method of a Math object you created (Math is not a constructor).
Examples
Using Math.cbrt()
js
Math.cbrt(-Infinity); // -Infinity
Math.cbrt(-1); // -1
Math.cbrt(-0); // -0
Math.cbrt(0); // 0
Math.cbrt(1); // 1
Math.cbrt(2); // 1.2599210498948732
Math.cbrt(Infinity); // Infinity
Specifications
| Specification |
|---|
| ECMAScript® 2026 Language Specification # sec-math.cbrt |