Logarithm Calculator
Calculate logarithms with any base. Compute log, ln, log₂, and log₁₀ of any number.
How to Use This Calculator
Enter your values in the fields above and click "Calculate" to get instant results. This logarithm calculator provides accurate results with step-by-step explanations.
Formula
log_b(x) = ln(x) / ln(b)
Quick Examples
- log₁₀(100) = 2
- ln(e) = 1
- log₂(8) = 3
Frequently Asked Questions
What is a logarithm?
A logarithm is the inverse of exponentiation. log_b(x) = n means b^n = x. For example, log₁₀(100) = 2 because 10² = 100.
What is the natural logarithm?
The natural logarithm (ln) uses the mathematical constant e (~2.71828) as its base.