How many glasses of iced tea equal the amount of caffeine in one cup of coffee?!
Energyfiend.com shows coffee (8oz): Drip = 145mg, Brewed = 108mg, and Instant = 57, so you must be getting that number somewhere else.
Drip coffee varies, but usually has between 120-180mg per 6oz (standard coffee serving) cup.
Tea has between 20-60mg per 8oz cup, depending on the type of tea used.
So 1 cup of coffee can have as much as 3-10 cups of tea. There's no exact answer with all the variables.
8 oz of Iced Tea = 47mg caffeine
8 oz of coffee = 80mg caffeine
These vary depending on the strength of the tea or coffee. I would say, roughly, twice as much iced tea needs to be consumed to equal coffee.
checked out energy fiend dot com