How much caffeine is in an Americano? The Starbucks numbers

A grande (16 oz) Starbucks Caffe Americano has 225mg of caffeine, per the Starbucks nutrition listing (menu). That works out to 14.1mg per fluid ounce and about 2.4 cups of 8 oz brewed coffee. It takes about 1.8 grandes to reach the 400mg daily amount the FDA cites for healthy adults.

Caffeine by size

Per-size figures match Caffeine Informer's compiled Starbucks guide (source), which mirrors the Starbucks nutrition listing.

The grande against the standards

How the number behaves

An Americano is espresso plus hot water, nothing else, so the caffeine ladder is just the shot count: one shot short, two tall, three grande, four venti, stepping 75mg at a time. Water changes the strength of the taste, not the dose. At grande and venti sizes that makes the Americano the strongest standard espresso drink on the menu; only the brewed coffees and cold brews run higher.

Compare it

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For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.

FAQ

How much caffeine is in an Americano at Starbucks? 225mg in a grande (16 oz), per the Starbucks nutrition listing. Sizes run 75mg short, 150mg tall, 225mg grande, and 300mg venti.

Is a Starbucks americano stronger than regular coffee? Per drink, yes: 225mg in a grande versus 95mg in an 8 oz cup of brewed coffee. Per ounce it is also higher: 14.1mg versus 11.9mg.

How many grande americanos reach 400mg of caffeine? About 1.8 of the 16 oz grande servings reach the 400mg daily amount the FDA cites for healthy adults.

Sources: the Starbucks Caffe Americano figures (225mg grande and the per-size ladder) are the Starbucks published nutrition listing (source), corroborated by Caffeine Informer's Starbucks guide (source). Brewed coffee (95mg per 8 oz) and espresso (63mg per 1 oz) reference values are from USDA FoodData Central.