Logarithm Calculator
Find log base 10, natural log, or log in any base.
CALCULATE
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Formulas
log_b(x) = ln(x) / ln(b)Change of base formula. Works for any base.
Logarithms
log10(1000) = 3. ln(e) = 1. log2(8) = 3. Used in decibels, pH, Richter scale, information theory, and complexity analysis (Big-O notation).
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