Logarithm Calculator
Find the logarithm of a number in any base, plus the natural log, log base 10 and log base 2.
log_10(1000)
3
- Natural log ln(x)
- 6.90775527898214
- log₁₀(x)
- 3
- log₂(x)
- 9.96578428466209
Show the work
Change of base
logb(x) = ln(x) ÷ ln(b)
ln(1000) ÷ ln(10) = 3
How it works
log_b(x) = ln(x) ÷ ln(b)
Questions
- How does the logarithm calculator work?
- log_b(x) = ln(x) ÷ ln(b).
- What do I need to enter?
- Number (x), Base (b). Optional fields can be left blank.
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