OneFreePlace
FREE ONLINE TOOL

Free Logarithm
Calculator

Free logarithm calculator with arbitrary bases, missing-variable solver, change of base, exact powers, graphing, log laws and step-by-step explanations.

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FreeUse this tool without paying.No sign upStart with the tool right away.Clear stepsRead the tool’s own guidance.

About Free Logarithm Calculator

Evaluate arbitrary-base logarithms, solve any missing value in bʸ=x, recognize exact integer powers, convert bases, compare common logs, verify logarithm laws, and visualize how the base changes the graph.

Workspace options

  • Base b
  • Exponent y
  • Argument x
  • Change to base c

Available actions

  • ☾ Dark
  • Reset
  • Solve missing value / evaluate log
  • log₂(8)
  • log₁₀(1000)
  • ln(e²)