Logarithm Calculator

Logarithm Calculator lets you change of base computes log(value) / log(base). Enter your own values or load the worked example.

Method and calculation

Change of base computes log(value) / log(base).

Inputs and settings

Logarithm Calculator accepts Value (minimum 0.000001); Base (minimum 0.000001).

Worked example

Logarithm Calculator example — Value: 1000; Base: 10. Computed output: { "logarithm": 2.9999999999999996 }

Output and limitations

Logarithm Calculator: Use finite inputs. Results use double-precision arithmetic.

Technical references: JavaScript numerical operations

Logarithm Calculator FAQs

Logarithm Calculator applies the following rule to your input: Change of base computes log(value) / log(base). The worked example on this page uses the same processor as the result button.
Logarithm Calculator has these boundaries: Use finite inputs. Results use double-precision arithmetic. Start by checking the value field against the units or format shown.
Logarithm Calculator provides this sample: { "logarithm": 2.9999999999999996 }. Use the sample button to reproduce it, then replace the inputs with your own values.