A shopping list generating system includes a coupon obtaining module, a keyword generator, a recipe obtaining module, and a shopping list generator. The coupon obtaining module obtains coupon information about one or more particular coupons from a coupon database. The keyword generator generates one or more keywords according to particular coupon information about the one or more particular coupons. The recipe obtaining module obtains recipe information about one or more recipes by querying the recipe database using the one or more keywords, and the shopping list generator generates a shopping list of ingredients according to the recipe information about the one or more recipes.