Logarithm Calculator
About Logarithm Calculator
Calculate logarithms with any positive base.
How to Use
Calculate logarithms with any positive base. Enter the Value and Base values and review the Log base, Natural log, and Log 10 outputs after you calculate.
- Open the calculator : Use Logarithm Calculator from the Math category.
- Check the inputs : Review the required values and any optional settings.
- Read the formula : Use the formula and notes below to understand how the result is produced.
Common Questions
What formula does the Logarithm Calculator use?
log_b(x) = ln(x) / ln(b).
Inputs
- Value
- Base
Outputs
- Log base
- Natural log
- Log 10
Formula
log_b(x) = ln(x) / ln(b)