The procedure for the conversion is given below:
Step I. In this step, you just have to choose the image file you want to convert into icon. The supported image formats are .jpg, .png, .gif and .bmp. The maximum size of allowed file is 1 MB.
Step II. This step allows you to choose the icon type. You can set it to Icon for Windows XP, Icon for Windows 7/Vista, Toolbar icon or any other custom size. The best option is Custom Size for flexibility.
Step III. The third step is to download the icon. Click the Download button. It will take few seconds for converting image into icon. Then it will ask you for location to save the icon and downloading will start.
Hope this helps. If you have any questions, you may ask in comments.