If you use three quarters cup of sugar per gallon to make sweet tea how many calories are in a 8 oz glass of sweet tea?

There are approximately 578 calories in 3/4 cup of sugar and no nutritional value (calories) in the tea, making 578 (approx.) calories in the entire gallon of sweet tea. There are 128 fl. oz. in a gallon, so there are 16 cups (8 fl. oz. glasses) in one gallon. Take the 578 calories from the gallon of sweetened tea divided by the 16 cups and you get the amount of calories in an 8 oz. glass.

Formual broken down:

578 calories per gallon / 16 cups per gallon ~ 36 calories per cup.