Log Calculator Guide
Use this calculator when you need base-specific logarithms.
How It Works
A logarithm answers “what power do I need to raise the base to, to get this number?” Common log uses base 10, while natural log (ln) uses the constant e. Logarithms are the inverse of exponents.
Common Uses
Logarithms appear in pH calculations in chemistry, decibel (sound) measurements, earthquake magnitude (Richter scale), and modeling exponential growth or decay.
Important Note
The calculator uses natural logarithms under the hood for custom bases.