"Pounds of sugar" in calculator is not equivalent to pounds of weight gained. Amount of sugar based on 3 grams of sugar per pack. Drink sizes used are a 20 oz. cola; 2 liter cola; 20 oz. sports drink; 16 oz. frozen coffee drink (no whipped topping); 16 oz. energy drink; and a 16 oz. sweetened tea. Cost based on prices at Los Angeles 7-Eleven and Starbucks stores as of 12/6/11.