Logarithm Calculator
Calculate logarithms with different bases
Result
The calculated logarithm value
Enter a value and click "Calculate" to see the result
Instructions:
- Value must be greater than 0
- Base must be greater than 0 and not equal to 1
- Natural log: ln(x) = logₑ(x)
- Common log: log₁₀(x)
- Custom base: logₐ(x)
About Logarithms
A logarithm is the inverse operation to exponentiation. If bᵖ = x, then logᵦ(x) = p.
log₁₀(x) = ln(x) / ln(10)
ln(x) = logₑ(x)
logₐ(b) = logₓ(b) / logₓ(a)
About This Calculator
Frequently Asked Questions
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