How to Convert MP3 to M4R for iPhone Ringtone

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How to Convert MP3 to M4R for iPhone Ringtone

How do I convert MP3 files to M4R files? How do I set my favorite song as a ringtone on an iPhone without iTunes?

MP3 is the most popular audio format in the world, and most of the music we hear on the iPhone is in this format. Although more and more different audio formats have been invented, MP3 is still the main trend. It’s hard to satisfy some iPhone users who want to customize ringtones because iPhone can only set M4R audios as ringtones. While M4R audios we can find are far less than MP3 ones, so one needs to convert the MP3 file to M4R first to set the iPhone ringtone. And this article will give you a detailed guide about how to do it.

Convert MP3 to M4R for iPhone ringtone

Part 1. Convert MP3 to M4R with Syncios Mobile Manager

To do the conversion you need a convenient tool — Syncios Mobile Manager, which we highly recommend here. Actually, it’s a piece of powerful phone management software that supports the transfer of almost every kind of data between phone and computer, and it has many other useful functions including One click backup and recovery, HEIC Converter, Audio Conversion, Video Conversion, Photo Compression, and Ringtone Maker. In this article, we will introduce how to use the function Audio Conversion to convert an MP3 file to an M4R file and then set it as the iPhone ringtone.

What Syncios Mobile Manager can do:

  • Selectively backup and restore contacts, messages, call log, music, video, photo, apps, eBook and more.
  • Import music, photos, videos, files from computer to mobile phone.
  • Manage music files on iOS/Android devices, edit song details and deduplicate.
  • Preview and export SMS, Call History & Contacts to readable format on computer.
  • Handy tools: One-Click Backup/Restore, HEIC Converter, Photo Compression, Ringtone Maker, Audio Converter and Video Converter.

How to convert MP3 to M4R with Syncios Mobile Manager:

Step 1 Launch Syncios Toolkit and click on “Mobile Manager” to run it.

Run Syncios Mobile Manager

Step 2 Connect your iPhone to the PC with a USB cable. Make sure that there is no problem with the USB cable or else it will cause Syncios to fail to detect the iPhone. (For more solutions to solve different undetected iPhone problems, please see this guide.)

Connect iPhone to PC via USB cable

Step 3 Click on “Toolbox” in the upper right corner and choose “Audio Conversion”, then the operating window will pop up.

Choose Audio Conversion

Step 4 Convert MP3 file to M4R.

Click on “Add Audio” > “Add Files” in the upper left corner to add the song or audio you want to convert. Then you can click on “Change” on the right to set the audio output destination. Under the output setting is the convert format setting, the format is MP3 by default so you need to select M4R manually before converting. Lastly, click on “Convert” on the lower right corner and it begins to convert.

Once it completes, the state of the MP3 audio will change into “Succeeded”, and the converted M4R file has already been downloaded in the target folder.

Convert MP3 file to M4R

Step 5 Add the M4R audio file to iPhone Ringtone.

Now the M4R file has converted successfully in your computer, and you need to add it to iPhone Ringtone before setting it as the ringtone. You can do it also with Syncios Mobile Manager:

Click on “Music” on the top and choose “Ringtones” in the left bar. Click on “Add” > “Add Files” in the upper left corner of the main interface. Choose the M4R audio you just converted on your computer and click on “Open”. Once it’s done, the M4R file will be shown in the main interface which means it has been added to your iPhone Ringtone.

Add M4R audio file to iPhone Ringtone

Part2. Set Ringtone on iPhone

Now everything was ready, the final procedure is to set the converted M4R audio as the ringtone. Please follow the steps below to do it.

Step 1Unlock your iPhone and tap on Settings > Sounds&Haptics > Ringtone.

Step 2 Find the audio you have added to your iPhone. Normally speaking, the new audio file will be placed at the top of all the ringtones. Tap on it and your iPhone will play it automatically. Make sure that it is the right audio and tap on it again to stop playing. Now you have already made your own unique phone ringtone successfully.

Set the M4R audio as iPhone ringtone


If you once tried to set your favorite song or other MP3 audio as your iPhone ringtone but failed because of the incompatible format, Syncios Mobile Manager can help you to convert it to M4R easily! What’s more, it also supports image and video conversion, data transfer between phone and computer, backing up and restoring data in one click. With these functions all in one Syncios Mobile Manager, you can manage your iPhone efficiently and conveniently. So why not download and try it now!


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