How to convert AVI to MP4? This article shows a marvelous video converter, MiniTool Video Converter, to do this conversion. The conversion steps are brief and easy, which only require downloading and installing it, adding an AVI file, specifying MP4 as the output format, and beginning conversion.
After handling multiple video conversions, I found AVI and MP4 are the 2 most common container formats. The following is a comparison of their basic characteristics.
| AVI | MP4 | |
| Full Name | Audio Video Interleaved | MPEG-4 Part 14 |
| Compatibility | Windows, Mac, Linux, and most players | All systems, devices, and platforms |
| File Size | Large | Small |
| Video Quality | Standard | Near the original quality with high compression |
Why Convert AVI to MP4
Converting AVI to MP4 brings numerous practical benefits in daily use. The following are the three most notable ones:
- Reduce file size: AVI is outdated and results in large file sizes. Converting AVI to MP4, which uses H.264/AVC encoding, significantly reduces file size while maintaining the original video quality.
- Improve compatibility: Modern devices like smartphones and TVs, and mainstream video streaming platforms like YouTube and Netflix, no longer natively support AVI. However, MP4 can be smoothly played on almost any device.
How to Convert AVI to MP4
To convert AVI to MP4 on Windows, MiniTool Video Converter is an ideal choice. It helps convert a smaller-sized video without sacrificing much quality. Here is how to convert AVI to MP4 using this converter.
Fast Track:
- Install MiniTool Video Converter
- Import AVI video
- Specify MP4 as the converted format
- Begin the conversion process
- Check and locate the converted video
Step 1. Launch MiniTool Video Converter
Download MiniTool Video Converter and follow the on-screen prompts to install it on the computer.
MiniTool Video ConverterClick to Download100%Clean & Safe
Step 2. Import the AVI file
After the installation, launch MiniTool Video Converter. On the default Convert Video tab, click on the Add Files option to import the AVI video.

Step 3. Choose the MP4 format
On the imported conversion task, click on the Gear icon to trigger the output format settings window. Here, switch to the Video tab and choose MP4. Next, choose a resolution option on the right page, like 4K Video.

Step 4. Start the AVI to MP4 Conversion
Before the conversion, expand the Output option to specify a saving path for the converted file. Then, click on the Convert button to start the conversion process.

Step 5. Check and Locate the Converted File
Once the conversion finishes, this converted MP4 video will automatically go to the Completed tab. There, click on the Play icon or the Folder icon to view or locate it.

MiniTool Video Converter has clear and intuitive interface, which makes AVI to MP4 conversion much easier. Also, it allows batch conversion of up to 5 tasks simultaneously.
Main Features
- Support 1000+ conversions between videos and audio formats.
- Optional output format and fast conversion speed.
- Make video and audio files compatible with mobile devices, like Apple, Huawei, Samsung, and Android.
- Customizable parameters, including resolution and frame rate.
- Support converting videos to 4K resolution.
Bottom Line
This article tells how to convert AVI to MP4 with simple steps. It recommends a professional video conversion tool, MiniTool Video Converter, with its step-by-step guide, which is even suitable for beginners.
Of course, if you have any questions when using MiniTool Video Converter, feel free to contact the MiniTool official via [email protected] for support.
Convert AVI to MP4 FAQ
Second, select the AVI to MP4 option and import the target AVI file.
Then, start the conversion.
There are many free online converters available, such as:
CloudConvert
Zamzar
ConvertFiles
Step 1: Launch VLC and navigate to Media > Convert/Save…
Step 2: Click the +Add... option to add your AVI file, then click the Convert/Save option.
Step 3: Expand the Profile section and select Video - H.264 + MP3 (MP4) as the output format.
Step 4: Click the Browse option to specify the save location. Then, change the file name extension to .mp4.
Step 5: Click the Start button to begin the conversion.


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