How to Convert M4A to MP3 on Windows 10 PC Just go on reading to find the software that is best for you. This article will introduce you the top 7 M4A to MP3 converter to help you turn M4A to MP3 on Windows, Mac, and mobile phones. To enjoy the music on any media player and devices, you can convert M4A to MP3, which is a common and popular audio format. Then how to solve this problem? An easy and quick method is to change the M4A file format. If you have some M4A files and want to enjoy them on your desired players or devices, you may find it a little difficult, as M4A format is not a common audio format in daily life. 'I have downloaded my favorite songs from iTunes and the songs are in the format of M4A, but they can not be played on my phone.