Caffeine in Drinks

Costa Coffee

Costa Coffee
241 mg
per 299ml
This coffee contains extreme levels of caffeine. How much should you drink? Calculate now →

The caffeine amount listed is for a Costa Flat White (medium size).

Costa Coffee is the largest and most popular coffee house chain in the UK. Costa began in 1971 when brothers Sergio and Bruno Costa poured their first cup in London and has since opened shops in 29 countries.

Costa Coffee's caffeine revolves around the shot of espresso as they serve predominantly espresso-based drinks.

1 shot equals about 100 mg of caffeine.

Most of their coffees then use the following shot amounts.

  • Small = 2 shots
  • Medium = 3 shots
  • Large = 4 shots

Except for the latte that has one less shot per each drink size. Somewhat confusingly, Costa shows 325 mg for a medium, which doesn't quite line up with the number of shots.

The Flat White is made with slightly different extraction method (cortissimo) leading to the difference in caffeine.

Caffeine in most Costa coffee drinks

Beverage Small (12 fl oz) Medium (16 fl oz) Large (20 fl oz)
Espresso 100 mg (single) 200 mg (double) 300 mg (triple)
Flat White 241 mg - -
Americano 200 mg 325 mg 400 mg
Latte (also flavors) 100 mg 200 mg 325 mg
Mocha (also flavors) 200 mg 325 mg 400 mg
Cappuccino 200 mg 325 mg 400 mg
Cortado 100 mg - -
Filter coffee 192 mg 256 mg 320 mg
Cold brew 160 mg 210 mg  


Costa Coffee has high caffeine amounts for espresso-based coffee, so caution should be exercised by some if choosing the Massimo size. However they do have the option of a decaf blend. Some stores may also offer a 'half-strength' blend - a 50/50 mix of the Signature blend with decaf.

Note: Some of the Costa espresso based drinks have longer or shorter espresso extraction times. This will cause the caffeine content to vary in some of the drinks.

Caffeine in espresso can vary depending on the quality of the coffee beans, exact extraction methods, and exact grams of ground coffee used. Therefore, Costa Coffee's caffeine amounts could vary from what's listed above.


Ingredients in Costa Coffee

Coffee, Water

Includes 8.7 grams of sugar (per 10.14 ounces) for a total of 222 calories.

Compare sugar levels of other drinks

Is Costa Coffee high in caffeine?

Costa Coffee contains 241 mg of caffeine in a 299 ml cup.

This equates to 23.77 mg of caffeine for every fl oz and 80.37 mg for every 100 ml.

241 mg
Costa Coffee
160 mg
Monster energy
80 mg
Red bull
60 mg
Instant Coffee
35 mg

Sources and email from customer service. And nutrition and allergen guide from Costa. See other references.