Daily How Much

Most 8-oz glasses land around 20–50 mg of caffeine, with stronger brews reaching 60 mg.

A single 1-oz espresso shot usually has about 63 mg of caffeine, with doubles landing near 125 mg.

A home-made mug usually lands around 10–25 mg of caffeine, while café hot chocolate often sits near 20–30 mg.

An 8-oz cup has about 31 mg of caffeine, based on the 46 mg listed for a 12-oz serving.

An 8-oz cup of brewed coffee usually lands around 80–120 mg of caffeine, with some cups running lower or higher based on beans and brew choices.

An 8-ounce cold brew often lands around 150–250 mg of caffeine, while concentrates and big café sizes can push a single drink past 300 mg.

Many 8-oz cold brews land in the 100–200 mg caffeine range, shaped by brew strength and serving size.

Coffee usually has more caffeine per cup than tea, yet brew style, serving size, and steep time can flip the gap.

A 12-oz can of Coca-Cola lists 34 mg of caffeine, so an 8-oz cup lands near 23 mg when poured straight.

A standard 8-ounce cup of brewed dark roast often lands around 90–100 mg of caffeine, with brew strength and mug size driving most changes.