Custom ringtones are great – they let you add a personalized touch to your phone. Some phones allow you to add custom ringtones, such as a song in your music library easily, while others, namely the iPhone, do not. While Apple does offer the ability to purchase ringtones through the iTunes Store, many users would like to use tracks they have already purchased for this. Thankfully, there is a way to do this. Step 1: Launch iTunes and make sure you have your iPhone plugged in.Step 2: Choose the song youd like to use as a ringtone. Right-click on the song in iTunes and select “Get Info”Step 3: Under the “Options” tab, check the box next to “Start Time” and “Stop Time.” The ringtone cannot be more than 30 seconds long, so be sure to choose a start and stop time that youd like to use and only 30 seconds. Click “OK” when done.

via How to convert any song in your iTunes library to an iPhone ringtone | Its All Tech.