If you have lots of YouTube FLV videos and want to convert these YouTube Video to iPhone compatible format, just try iPhone Video Converter Suite. Here I'll show you how to convert YouTube Video to iPhone supported video format for watching on the iPhone step-by-step.

Convert YouTube to iPhone Guide

Step 1: Add YouTube videos (.flv file)

Hit "Open File", and import your downloaded flv files. You can import more than one file at one time, and convert them according to your own wishes.

Step 2: Set the video parameters as your need

Choose the video file, click "Profile" button to open the Audio/Video Output Settings window, click "Profile" drop-down button, select an output format for selected files in the drop down list that opens. Click "Output" button to select a destination folder in the dialog box that opens, and then click OK.

Tips: In this step, you can change the default parameters, you can set the Video and Audio options, for example, Video Bitrate, Frame Rate, Video Size, Audio Bitrate, Sample Rate, etc.

Step 3: Convert YouTube video to iPhone

After finishing the above settings, check the files needed to convert in the file list, and click "Convert" button on the main interface, to start converting the movie.

When the conversion is completed, transfer the created files to iPhone, after that you can enjoy videos on your iPhone at anytime, anywhere.