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

𝙼𝚊𝚝𝚑.𝚌𝚋𝚛𝚝(𝚡)=x3=the unique y such that y3=x\mathtt{\operatorname{Math.cbrt}(x)} = \sqrt[3]{x} = \text{the unique } y \text{ such that } y^3 = x

Try it

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 Language Specification
# sec-math.cbrt

Browser compatibility

BCD tables only load in the browser

See also