Math.LOG2E

Baseline Widely available

This feature is well established and works across many devices and browser versions. Itโ€™s been available across browsers since โจJuly 2015โฉ.

The Math.LOG2E static data property represents the base 2 logarithm of e, approximately 1.443.

Try it

function getLog2e() {
  return Math.LOG2E;
}

console.log(getLog2e());
// Expected output: 1.4426950408889634

Value

๐™ผ๐šŠ๐š๐š‘.๐™ป๐™พ๐™ถ๐Ÿธ๐™ด=log2(e)โ‰ˆ1.443\mathtt{Math.LOG2E} = \log_2(\mathrm{e}) \approx 1.443
Property attributes of Math.LOG2E
Writableno
Enumerableno
Configurableno

Description

Because LOG2E is a static property of Math, you always use it as Math.LOG2E, rather than as a property of a Math object you created (Math is not a constructor).

Examples

Using Math.LOG2E

The following function returns the base 2 logarithm of e:

js
function getLog2e() {
  return Math.LOG2E;
}

getLog2e(); // 1.4426950408889634

Specifications

Specification
ECMAScriptยฎ 2026 Language Specification
# sec-math.log2e

Browser compatibility

See also