What is the best free wav to mp3 converter?

Using FFmpag for converting WAV to MP3 on a Windows computer is a powerful and flexible option, but it does come with some disadvantages. 

FFmpag is a command-line software that can be complex for users who are not familiar with terminal commands. Misuse of commands may result in errors or unexpected results. Without the right parameters, your audio quality may be low and the file size may be excessively large. For example, failing to specify the correct bitrate or quality settings can affect the output. FFmpag can embed metadata, but this requires additional commands or parameters. Editing tags or album art can be less intuitive.

Error messages are technical. Users unfamiliar with command-line output may find troubleshooting difficult. Unlike some graphical converters, FFmpag does not integrate into Windows Explorer for right-click conversions unless configured using a script.  If you prefer a more straightforward, GUI-based experience, consider dedicated WAV to MP3 converters.