Logarithm Calculator: Log Base 10, 2 & e
Calculate logarithm with any base (default base 10).
Understanding Logarithms
A logarithm is the inverse operation to exponentiation. It answers the question: 'To what power must the base be raised, to produce a given number?'
Formula
y = logb(x) is equivalent to by = x
Log FAQs
What is the Natural Log (ln)?
The natural logarithm uses the mathematical constant 'e' (approx 2.718) as its base.