log
Logarithm Calculator
Logarithms in any base: common (10), natural (e), binary (2) or your own.
Result…
How it's calculated
log_b(x) = y ⇔ b^y = x log_b(x) = ln(x) / ln(b)
A logarithm asks "to what power must I raise the base to get x?". The change-of-base rule lets any base be computed from natural logs.
Your numbers, step by step
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