WAV audio files are a great way to preserve the full and accurate quality of a recording in a truly loss-free format on your computer. However, if you are not an audio file and are worried about storage, it may be time to convert them into a more manageable format like MP3.
What is a WAV file?
A Waveform Audio File Format (WAV), pronounced "Wave") is a raw audio format created by Microsoft and IBM. WAV files are uncompressed loss-free audio, which can take up quite a bit of space, which comes about 10 MB per minute.
WAV file format uses containers to contain the audio in "bits" using Resource Interchange File Format. This is a common method that Windows uses to store audio and video files, such as AVI, but can also be used for arbitrary data.
They are used primarily in professional music recording industry, but more and more people move away from WAV and use FLAC (Free Lossless Audio Codec) because it uses compression to make files smaller while retaining the same quality.
RELATED: What are WAV and WAVE files (and how do I open them)?
How to Convert WAV to MP3
If you have the majority of your audio files in WAV format, chances are they are eating a lot of disk space. One way to reduce the effects they have on your storage without getting rid of them completely is to convert them into a smaller, more compressed format such as MP3.
Using VLC to Convert Your Files
VLC is a free and open source media player that opens almost any file format and it has an option to convert your audio files and it's a favorite here on How-to Geek .
Open VLC, then click "Media" and then "Convert / Save."
If you already have a file loaded in VLC, the tool does not automatically load into the converter. You must load the file again from this window. Click the "Add" button on the right side.
Navigate to the file and click on "Open".
Click "Convert / Save" to open the next window.
From the "Profile" list box, select "MP3" and then click "Browse" to select a folder for which you want to save the file. 
Once you have selected a folder, you must change the file extension to ".mp3" and then click "Save."
If you want a little more control over the coding that happens during the conversion, click the wrench.
This gives another window with some more advanced options that you can tinker. The "Sound Codec" tab is especially useful for changing things like bitrate, channels, and sampling frequency.
Finally, click "Start" to begin the conversion process.
Depending on the file size and bit rate selected, conversion will not take too long to complete. Afterwards, you can access the MP3 file from the saved folder you specified.
Using Online Solutions to Convert Your Files
There are many websites out there that let you convert your files for free, but the one we continue to go back to is Zamzar. You can convert up to 10 files at a time, and they do not save any files on their servers for over 24 hours.
After going to Zamzar's website, click on "Select files" or drag and drop the files in your browser window to upload them to the site.
Then select "MP3" as the output file type in the drop-down menu.
] Finally enter a valid email address where you can get a link to your converted files and click "Convert."
After the conversion is complete (which does not take too long, if you do not convert many large files) you will receive an email with your file (s) ready to download.