Download AVI to iPad Converter and launch it, the interface like this:

Step 1: Add File - Click
to add multiple files at one time.
Step 2: Set output format - Select the iPad from the first drop-down list and the next one to set the output format.

Step 3: Select output folder - Use default output folder or click
and set output folder as you will.
Step 4: Convert video - Click
to start conversion. After a few minutes waiting, you can play the files on your iPad.
AVI to iPad Converter not only owns the wonderful converting function, but also has the useful editing function to edit the AVI video perfectly.