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Log Calculator

Calculate logarithms in base 10, base 2, natural log, or a custom base.

Log base 10
2
10^2 = 100
Common logarithm (base 10)2
Natural logarithm (ln)4.60517019
Binary logarithm (base 2)6.64385619

About the Log Calculator

Calculate logarithms in base 10, base 2, natural log, or a custom base.

It runs entirely in your browser — nothing you type is sent to a server — and the result updates as you edit the inputs. Estimates are for educational and informational purposes only; see ourdisclaimer.

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