Convert JPG to AI

Converting JPEG Images directly to Adobe Illustrator Artwork format (.jpg to .ai conversion) is typically attempted to convert, for instance, logos in .jpg format to a vector graphics format. 

Using Adobe Illustrator will enable you to convert bitmaps to vectors with the 'LiveTrace' function. For that, you will need some knowledge of Adobe Illustrator's functions and features.

Alternatively, you should be able to find third-party vector graphics utilities capable of converting .jpg to .ai.