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How to convert MP3 to MP4 with Movavi Video Converter

Edited by Ben Jacklin

Despite the fact that they have similar-sounding names, MP3 and MP4 are very different file formats in a lot of ways. The biggest difference between them is that MP3 is exclusively an audio format, only capable of holding audio tracks. Meanwhile, MP4 files are capable of storing both audio and video data. You might need to convert from one to the other, and an MP3-to-MP4 converter can help. You can use an MP3-to-MP4 converter online if you want to convert a single file. For batch conversion and more advanced features, choose a desktop program.

Movavi Video Converter is one of the best programs you can use for converting MP3 to MP4. This program is available on both Mac and Windows devices. It's very simple to set up and use, allowing you to convert between various formats, including MP3 and MP4. Read on to find out how to convert MP3 to MP4 on your device.

Step 1. Download and install the MP3-to-MP4 audio converter

The first step of using Movavi's MP3-to-MP4 converter is to download the program to your device. You can download both the Windows and Mac versions of the program from the official Movavi site. So, make sure to download the correct file for your platform, such as the MP3-to-MP4 converter for a Mac and the Windows version if you're on Windows. Then, launch the installer and follow the on-screen instructions to set up the program.

Step 2. Add your files for conversion

Once the converter has been installed on your device, you can open it up to add your files to the converter for the MP3-to-MP4 conversion. To do this, simply press the Add Media button and choose Add Audio. You can then browse your device and find the files you want to change. Don't forget that Movavi Video Converter supports batch conversion, so you can add multiple files and convert them all at once.

Step 3. Select the output format

Once your MP3 files have been added to the program, click on the Video tab near the bottom of the screen. You can then select the MP4 format from the list of file types provided and pick a preset, ready for conversion.

Step 4. Convert MP3 to MP4

The final step of the process is to click on the Save to button in the bottom left and pick a location where your new MP4 files will be saved after conversion. You can then click on the Convert button itself to begin the process and simply wait for it to finish.

MP3 or MP4

Comparison parameter



File extension



File type


Audio and video


A group of European engineers from Fraunhofer Society, IRT, and CCETT

International Organization for Standardization


Works on almost any music player

Works on most media players and devices

File size

Typically smaller than MP4

Typically larger than MP3

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  • When testing, we compare key characteristics, including supported input and output formats, quality loss when converting, and other significant features.

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  • We collect feedback from our users and analyze their opinions of Movavi software as well as products from other companies.



Hopefully, this guide helped you to learn the differences between formats and whether to choose MP3 or MP4. If you need to change the files format, you can choose an online converter for your MP3-to-MP4 conversion or a powerful desktop program. Movavi Video Converter is one of the best MP3-to-MP4 converter apps you can use, and it's very simple to download and start using today. You can use it for all your conversion needs whenever you need to convert MP3 to MP4 on a Mac or Windows, either to make a file easier to play or for editing or sharing purposes.

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