Daily How Much

Caffeine in drinks ranges from near-zero to 300+ mg per serving, so the label and serving size matter more than the drink’s name.

An 8-oz brewed coffee often has around 95 mg of caffeine; many cups land between 70–165 mg.

One Bayer Back & Body caplet contains 32.5 mg of caffeine, so a standard 2-caplet dose provides 65 mg.

A 12-oz can of Barq’s Root Beer contains 22 mg of caffeine, while Barq’s Zero Sugar Root Beer is caffeine-free.

Most 250 ml energy drinks sit near 80 mg of caffeine, while many 16 oz cans land near 150–200 mg.

A classic 12-oz serving of AriZona Green Tea has about 8–10 mg of caffeine, so the “Big Can” is still a light-caffeine drink.

A venti Starbucks Pink Drink has about 70 mg of caffeine, coming from green coffee extract in the Refresher base.

A typical tea bag yields about 25–55 mg of caffeine per 8-oz mug, with black tea running higher and green tea running lower.

An 8-oz cup of brewed coffee often lands around 80–100 mg of caffeine, with bean type and brew choices nudging it up or down.

A venti cold brew at Starbucks lands near 323 mg of caffeine in published nutrition tables.