What you should know about coffee's carb content: A drink's caffeine content does not affect its carb content. Since common caffeine-based beverages can also be customized, it adds to the carbs. On average, if you consume a drink like an espresso, you can rest assured about zero carb intake. However, if you like having a cappuccino or latte daily, it will have many carbs (15-24 carbs per drink.) Therefore, with some simple calculations, you can use coffee to your advantage and not worry about the waistline.