Back to Tools
Math & Algebra

Logarithm Calculator

Calculate logarithms with any base. Solve for log_b(x) instantly.

Logarithm Calculator

The logarithm is the inverse function to exponentiation. That means the logarithm of a given number x is the exponent to which another fixed number, the base b, must be raised, to produce that number x.

Logarithm Calculator

log() = 2

Formula

y = log_b(x) <=> b^y = x

Common Logarithms

  • Common Log: Base 10 (log10)
  • Natural Log: Base e (ln)
  • Binary Log: Base 2 (log2)