The bigger the cup, the more sugar, calories, and caffeine it contains. Here’s a look at supersize fountain drink sizes, using Coca-Cola Classic as an example. (Mountain Dew, Sunkist Orange Soda, and Pepsi contain more caffeine; some drinks have none.) Note that ice in a cup will slightly dilute these numbers.

7-Eleven Fountain Drink Sizes
Caffeine Basics: Table of Contents
I’m an author and journalist specializing in food and cooking. Caffeine Basics is my ninth book. I’ve written about the U.S. wine industry, international foods, shrinking your “cookprint,” and cooking with kids. Great Bar Food at Home was a James Beard Award finalist, and Cooking Green: Reducing Your Carbon Footprint in the Kitchen won a Green Book Award. Publishers include John Wiley & Sons, ClarksonPotter, Macmillan and others.