How to write a logarithm (LOG) formula on a base different than base 10 on LibreOffice Math?

In my case, it seems to only allow me to change the value inside the formula but not the base.

1 Answer 1


How do I write a logarithm (LOG) formula with a base different to base 10?

To change the base use log_x(y) where x is the base.


To display the logarithm to base 3 of 10 use the following expression:


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  • Hi @DavidPostill, thanks for the answer but I think you do not understand the question. What I tried to do was to WRITE a LOG on LibreOffice Math, not CALCULATE a LOG on LibreOffice Calc. Aug 24, 2016 at 21:47
  • @JoãoPaulin Apologies for the misunderstanding. Answer is updated.
    – DavidPostill
    Aug 24, 2016 at 22:08

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