Convert AVCHD to MP4 Via 7 Methods with Lossless Quality

AVCHD is an amazing format for recording and playing high-definition videos. Still, many people are not familiar with this format or how to access it. In this case, one of the most popular workarounds is to convert AVCHD to MP4, a widely supported video format that can be shared across devices and platforms. This article will provide guidance on the file formats and how to effectively convert AVCHD without losing quality.

Part 1. AVCHD vs MP4 – What's the Difference?

While they are both video formats, AVCHD and MP4 are developed for different purposes. AVCHD is mainly used to store high-quality videos, often at large file sizes, as it can match the quality of Blu-ray discs. On the other hand, MP4 is a widely used digital format for storing video, audio, images, and other data while maintaining smaller file sizes. Using MP4 can also be advantageous, as it is accessible for editing and modification.

Part 2. Why Convert AVCHD to MP4?

To keep it short, it is advisable to convert AVCHD to a universal format, as it is unsupported on most devices. Unless you are fine with watching on an HDTV, MP4 can broaden the range of video sharing across platforms and devices without taking up much storage space. Plus, it makes it easier to edit and post it on social media.

Part 3. How to Convert AVCHD to MP4

Here's a quick guide to compare the recommended solution for converting AVCHD to MP4.

1. AVAide Video Converter

A high-quality MP4 conversion is best done with a dedicated tool like AVAide Video Converter. The software features a simple interface that lets you convert various files in one go. It supports various formats, including HEVC, MKV, VOB, and TS, allowing you to convert rare files without hardship. What's better is that it supports re-encoding settings, allowing you to adjust the sample rate, resolution, and video quality. AVAide Video Converter is your solution for converting AVCHD to MP4 on Windows and Mac.

Step 1Download and install AVAide Video Converter on Windows or Mac, then run it.

Step 2In the Settings menu on the right side of the uploaded video, choose MP4 under the Video tab. You might also need to tweak a few settings, such as the encoder, resolution, and frame rate, as desired.

Step 3Once you know you are all set, click the Convert All button and wait a few minutes while AVAide converts the videos. Repeat the process as needed.

2. VLC

As a media player, VLC generously offers conversion of AVCHD to MP4. It is a free media player that supports the playback of various video and audio files. It is an effective and quick solution, so many rely on this alternative. Here are the steps to follow:

Step 1Go to the Media menu in VLC Media Player and select Convert/Save. From the dialog box, click the Add button to import the AVCHD file. Click Convert/Save to proceed.

Step 2Open the Profile dropdown menu and choose the desired output format. Then click Browse next to Destination file to choose the location where the converted file will be saved. Click Start to convert AVCHD to MP4.

3. HandBrake

If you need a dedicated transcoder, you can consider HandBrake. It is a long-running free tool available on Windows and Mac. It specializes not only in changing formats but also in re-encoding the video's resolution, frame rate, and other parameters. Moreover, you can use HandBrake to compress video, edit, and more. Get started with the following steps for converting AVCHD to MP4 using HandBrake:

Step 1Run HandBrake on your computer and import the AVCHD file by clicking the Open Source button.

Step 2From the Container dropdown menu, choose the MP4 option. Optionally, you can edit the presets. Click Start Encode to convert the video.

4. iMovie

Unfortunately, iMovie does not fully support converting AVCHD to MP4 on Mac as the most compatible format is MOV. It can still be done with QuickTime. But first, follow the steps for iMovie to convert AVCHD to MP4 later:

Step 1Open iMovie and import the AVCHD file. Drag the video onto the timeline, and if you need some editing, you can do it optionally.

Step 2Next, click the Share button and choose File. Set the desired resolution and quality, then click the Next button to export as an MOV file. You will have to read the next section for QuickTime.

5. QuickTime

After following the steps in iMovie, QuickTime Player will continue to change the format. This is a pre-installed media player on Mac, but it has a basic conversion option to change AVCHD to MP4.

Step 1Simply open the video you extracted from iMovie on QuickTime Media Player.

Step 2Go to the File menu, then click Export As. Choose the preferred resolution and designated location, then click Save to export.

6. FFmpeg

FFmpeg is regarded as a hidden engine for some web platforms and programs. But it also handles transcoding, so converting AVCHD to MP4 is possible. But bear in mind that you will face a command-line interface, which can be overwhelming at first. Try following these steps to use FFmpeg.

Step 1Download the FFmpeg package on your device. Transfer the files from the package to a newly created blank folder. Make sure to name it and remember the folder.

Step 2Open Run, type cmd, then type cd at the command prompt. Enter the folder's name. Then, enter the CD bin to open the folder and ffmpeg.exe. You will have to copy and paste the following command line to convert: ffmpeg -i yourvideoname.avchd -c:v libx264 outputfilename.mp4.

7. XConvert

If you need a faster way to convert AVCHD to MP4, an online tool like XConvert would be your best choice. It features a sleek interface that allows you to easily upload and convert files. It can be limiting as its free version only allows a certain file size, but it has a cheap subscription. Here's how to use XConvert for your AVCHD:

Step 1Go online and search for XConvert. Upload the AVCHD file and wait until the website confirms the upload.

Step 2From the Format section, choose MP4 as the output format. Click the Convert button to process.

Part 4. FAQs about AVCHD to MP4

Does converting AVCHD to MP4 cause quality loss?

There is a slight reduction in video quality, especially when using a good converter. However, it can get worse if you use unreliable tools for converting or modifying.

Does VLC support playback for AVCHD?

Yes. VLC supports the file for playback. You can enjoy watching AVCHD on the media player without the need to convert or install additional codecs.

Can I access AVCHD files on a Mac?

Unfortunately, Mac does not support this file format. So, it is recommended to convert AVCHD to a fully supported format, such as MOV.

By Sylvie Hyde on Aug 20, 2026