One coffee bean often carries 1–4 mg of caffeine, with canephora beans running higher than arabica.

An 8.4-oz can has 80 mg of caffeine; 12-oz has 114 mg; 16-oz has 151 mg; 20-oz has 198 mg.

A typical 8-oz chai brewed with black tea lands around 40–70 mg caffeine, while chai lattes range wider based on the tea or espresso used.

A standard 20 fl oz bottle of Pepsi Cola in the U.S. has 38 mg of caffeine.

A typical milk chocolate bar has 5–15 mg of caffeine, while a dark bar can land closer to 20–80 mg depending on cacao and size.

A single espresso shot often sits around 60–75 mg of caffeine, while a 1-oz brewed “coffee shot” can land anywhere from 30 to 120 mg.

A standard 8-oz brewed coffee often lands near 80–100 mg of caffeine, while bean type, roast, and brew method can shift it a lot.

A Starbucks chai tea latte ranges from 26.2–65.5 mg caffeine in EU menus; U.S. menus list 95 mg for a grande.

A 12-oz can of Dr Pepper contains 41 mg of caffeine.

A Starbucks Grande chai tea latte is often listed at 95 mg of caffeine in the U.S., while some markets list about 52 mg—your store’s nutrition sheet is the