Math.LN2

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.LN2 static data property represents the natural logarithm of 2, approximately 0.693:

Try it

function getNatLog2() {
  return Math.LN2;
}

console.log(getNatLog2());
// Expected output: 0.6931471805599453

Value

๐™ผ๐šŠ๐š๐š‘.๐™ป๐™ฝ๐Ÿธ=ln(2)โ‰ˆ0.693\mathtt{Math.LN2} = \ln(2) \approx 0.693
Property attributes of Math.LN2
Writableno
Enumerableno
Configurableno

Description

Because LN2 is a static property of Math, you always use it as Math.LN2, rather than as a property of a Math object you created (Math is not a constructor).

Examples

Using Math.LN2

The following function returns the natural log of 2:

js
function getNatLog2() {
  return Math.LN2;
}

getNatLog2(); // 0.6931471805599453

Specifications

Specification
ECMAScriptยฎ 2026 Language Specification
# sec-math.ln2

Browser compatibility

See also