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A standard 12‑ounce can of Dr. Pepper contains about 42 mg of caffeine, roughly the same as a cup of weak tea and far less than brewed coffee.

As of 2025, two tablespoons of ground coffee typically contain 120–140 mg of caffeine before brewing, though costs vary by year and location..

As of 2025, a medium (14 oz) hot brewed coffee from Dunkin’ contains approximately 210 mg of caffeine, though costs vary by location..

Two standard 8-ounce cups of brewed coffee contain approximately 190 to 240 mg of caffeine, based on an average of 95–120 mg per cup.

A standard 12-ounce (medium) cup of brewed coffee typically contains between 150 and 250 mg of caffeine.

A 16-ounce bottle of Coca-Cola Classic contains about 42 to 45 mg of caffeine, based on the standard 34 mg found in a 12-ounce can.

A traditional 2-ounce macchiato contains about 85 mg of caffeine from a single espresso shot, while a Starbucks doppio macchiato delivers 150 mg.

A typical caffeine pill contains 100 to 200 mg of caffeine, with 200 mg being the most common single-tablet dose in over-the-counter brands.

A large McDonald’s Sweet Tea (32 fl oz) contains roughly 100 mg of caffeine, according to independent caffeine databases — about the same.

A 16 oz (grande) coffee typically contains 160 to 310 mg of caffeine, depending on the brand, roast, and brewing method.