Logarithm (Log) Calculator

Calculate the logarithm of any number with any base. Enter your values below and get the result instantly, along with a step-by-step explanation.

What is a Logarithm?

A logarithm answers the question: to what exponent must the base be raised, to produce a given number? For example, log28 = 3 because 23 = 8.

Formula

logbase(number) = exponent ⇒ baseexponent = number

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