How can i make songs into ringtones for my iphone?

iphone only support m4r media format. so you need to convert other file format to this kind. here is a tool can make it easy. http://www.isharesoft.com/iphone-ringtone-maker.html it can convert all kind of movie/music to m4r and transfer ringtone to your iphone automatic. hope it helps.

Yes you can do. This will work. Step 1 Open iTunes. Step 2 Find the song that you want to make into a ringtone. Step 3 Listen to the song and find the part of it you want to use. The chorus may be a good place to start. Step 4 Write down the start and stop times of the clip. Step 5 Right-click the song and select "Get Info." Step 6 Click the "Options" tab. Step 7 Type in the start time of your ringtone in the text box next to "Start Time" in the minutes:seconds (i.e. 2:01) format. Step 8 Type in the end time of your ringtone in the text box next to "Stop Time." Make sure the ringtone is no more than 40 seconds long. Step 9 Click "OK." Step 10 Right-click your song again and select "Convert Selection to AAC." Wait for iTunes to convert your song. It will create a duplicate version. Step 11 Right-click the ringtone and select "Delete." Step 12 Click on the "Keep Files" button. Step 13 Find the file. It's usually in your User folder under Music > iTunes > iTunes Music and under the band's name. It will have an extension of "m4a." Step 14 Replace the "m4a" extension of your ringtone with "m4r". You can either double-click slowly to rename your file, or right-click and select "Get Info" on a Mac or "Rename" on a Windows PC. Step 15 Click "Use .m4r" or the PC equivalent when the system warns you that the change may affect the use of your file. Step 16 Double-click the ringtone file. ITunes will automatically add it to your ringtones folder in your iTunes Music Library. Step 17 Connect your iPhone and sync your ringtones.

so far i have not as of yet found a way to do this on my iphone either.., most places say it is not possible and i believe they are correct