Four standard 8-oz cups of brewed coffee usually land near 320–400 mg of caffeine, depending on beans, grind, and brew style.

A 32-ounce Diet Coke lands near 123 mg of caffeine when you scale the brand’s 12-ounce figure up to a large cup.

A 32-oz coffee often lands between 250–650 mg of caffeine, with cold brew and strong drip mixes running highest.

A 200 mg capsule can hold anywhere from 0 to about 20 mg caffeine, depending on how the extract is made and labeled.

A 30-ounce brewed coffee often lands near 360 mg of caffeine, though bean type, brew method, and strength can swing it.

Thirty grams of ground coffee often carries 200–450 mg of caffeine, then brewing pulls a share of that into your drink.

Three standard 8-oz cups of brewed coffee usually add up to 250–300 mg of caffeine, with room to swing higher or lower.

A 24-oz coffee often lands around 200–400 mg of caffeine, with the exact amount driven by bean type, brew style, and how strong it’s made.

Three grams of matcha usually lands near 80–95 mg of caffeine, with real-world swings from about 60 to 105 mg.

A 12-ounce Pepsi contains 38 mg of caffeine, based on PepsiCo’s published product facts.