Daily How Much

A Dunkin’ medium iced coffee typically contains about 297 mg of caffeine in a 24-oz cup.

A Starbucks decaf latte usually lands in the low single digits of caffeine per cup, with most of it coming from the decaf espresso shot.

A 12-oz can of Dr Pepper contains 41 mg of caffeine, listed on the brand’s product facts label.

A standard double espresso often lands near 125 mg of caffeine, though real cups can run from about 95 to 185 mg.

Most healthy adults stay within 400 mg a day when caffeine is spaced out, while pregnancy and youth call for lower daily caps.

A decaf espresso shot still carries 2–15 mg of caffeine, with the number shifting by bean, decaf process, dose, and the way the shot is pulled.

One The Original Donut Shop K-Cup often lands around 90–120 mg of caffeine in an 8 oz brew, with some pods trending higher or lower.

A decaf Starbucks latte still contains caffeine, often in single-digit milligrams, with the total shifting by size and shot count.

Most diet sodas land around 30–50 mg of caffeine per 12-oz can, while caffeine-free options sit at 0 mg.

A 12-oz can of Diet Pepsi contains 35 mg of caffeine, while a 16.9-oz bottle contains 50 mg.