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Math Calculators
Log Calculator
Calculate the logarithm of a number to any base, including natural log and log base 10.
log_base(value)
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About the Log Calculator
The logarithm answers the question: "to what power must the base be raised to produce this number?"
Formula (change of base): logb(x) = ln(x) ÷ ln(b)
Set base to 10 for the common logarithm, or to e (≈2.71828) for the natural logarithm (ln).
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