Log Calculator

Calculate logarithms with any base, including natural (ln) and common (log₁₀).

log

Enter your loan details to see the breakdown.

Log Calculator

Calculate logarithms with any base, including natural (ln) and common (log₁₀).

A 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.

logb(x) = y ⇔ by = x
  • Common Logarithm: Base 10 (log₁₀)
  • Natural Logarithm: Base e (ln) ≈ 2.71828