About six cups of brewed black tea.
Here's What The Maximum Amount Of Caffeine You Should Be Drinking In A Day Looks Like
Samantha Lee/Business Insider
You might be surprised to learn that not all tea is designed to lull you into a relaxed, sleepy state. An average cup of brewed black tea contains about 67 mg of caffeine, still less than a can of Red Bull or a cup of McDonald's coffee but far from minimal.
About 12 cans of Coke.
One 12-ounce can of Coke has 34 grams of caffeine. While that might seem pretty low, if you're like us and drink a few of these in a day, it can add up! Still, a single can is the rough equivalent of about a third of a cup of regular coffee or about a seventh of a cup of Starbucks.
About five and a half lattes.
A standard shot of espresso contains about 71 mg of caffeine, meaning that a small latte(espresso plus steamed milk) or cappuccino (espresso plus milk and foam) — so long as its made with a single shot — contains the same amount.