Math.LN2 - JavaScript - MDN Web Docs

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Math.LN2 Baseline Widely available

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

In this article

• Try it
• Value
• Description
• Examples
• Specifications
• Browser compatibility
• See also

Try it

function getNatLog2() { return Math.LN2; } console.log(getNatLog2()); // Expected output: 0.6931471805599453

Value

𝙼𝚊𝚝𝚑.𝙻𝙽𝟸=ln(2)≈0.693\mathtt{Math.LN2} = \ln(2) \approx 0.693

Property attributes of Math.LN2
Writable	no
Enumerable	no
Configurable	no

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:

jsfunction getNatLog2() { return Math.LN2; } getNatLog2(); // 0.6931471805599453

Specifications

Specification
ECMAScript® 2026 Language Specification# sec-math.ln2

Browser compatibility

See also

• Math.exp()
• Math.log()
• Math.log2()

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1. Standard built-in objects
2. Math
3. Static methods
   1. abs()
   2. acos()
   3. acosh()
   4. asin()
   5. asinh()
   6. atan()
   7. atan2()
   8. atanh()
   9. cbrt()
   10. ceil()
   11. clz32()
   12. cos()
   13. cosh()
   14. exp()
   15. expm1()
   16. f16round()
   17. floor()
   18. fround()
   19. hypot()
   20. imul()
   21. log()
   22. log1p()
   23. log2()
   24. log10()
   25. max()
   26. min()
   27. pow()
   28. random()
   29. round()
   30. sign()
   31. sin()
   32. sinh()
   33. sqrt()
   34. sumPrecise()
   35. tan()
   36. tanh()
   37. trunc()
4. Static properties
   1. E
   2. LN2
   3. LN10
   4. LOG2E
   5. LOG10E
   6. PI
   7. SQRT1_2
   8. SQRT2