How Much Caffeine is in a “normal” Cup of Coffee?

coffeeBefore discussing the answer to this question, let me pose a related question:

WHY DO YOU NEED TO KNOW HOW MUCH CAFFEINE IS IN A CUP OF COFFEE?

Well, you need to know the amount of caffeine found in a cup of coffee to help you track how much caffeine you’ve already consumed in a day. You should control your caffeine intake; don’t reach beyond the limit. Otherwise, you’re going to experience stomach problems and other negative effects.

However, you have to know that the caffeine limit of a person might be different for another person. That’s because people react differently to caffeine based on their current fitness level, age, tolerance, and even medical history. For instance, a 19-year-old might be more sensitive to caffeine than a 25-year-old. Then again, their medical history and other factors should be considered.

Generally, for adults, the daily recommended intake of caffeine is about 200 mg to 400 mg only. For teenagers, they’re only allowed half of that range. Consuming more than that is a mistake. That means you can only take 5 shots of Espresso, 40 fl. oz of Red Bull, two 5-hour energy shots, 40 fl. oz of Monster energy drinks, 140.4 fl. oz. of Coke, or 1 Starbucks Venti-sized brewed coffee.

Let me raise another question

WHAT CAN AFFECT CAFFEINE CONTENT?

Since we’re talking about coffee here, the caffeine content of coffee relies on four factors: type of beans, type of coffee, roasting process, and serving size. Coffee beans come in several varieties. The choices have become wider and wider too! The caffeine in the beans depends on how much caffeine is naturally found in the beans. The type of coffee also affects caffeine content depending on whether it’s an espresso, an instant coffee, a decaf, or a brewed one. Coffee beans are categorized into roasts and the darker they are; the less caffeine they have. A cup of coffee isn’t always the same in all coffee shops. A cup can contain between 30 to 700 ml of coffee; that’s why the serving size matters too.

All right, I know you’re excited to know the answer to the question. But before that, know that all these statistics come from mayoclinic.org. Their research on caffeine is the basis of these answers. To know how much caffeine there is in a normal cup of your favorite drinks, refer to the table.

Type of Drink

Size in oz.

Size in mL

Caffeine (mg)

  1. Soda

Citrus*

8

237

0

Cola

8

237

24-46

Root beer*

8

237

0

  1. Energy Drink

8

237

27-164

Energy Shot

1

30

40-100

  1. Teas

Brewed black

8

237

25-48

Brewed black, Decaf

8

237

2-5

Brewed green

8

237

25-29

Ready-to-drink

8

237

5-40

  1. Coffee

Brewed

8

237

95-165

Brewed, Decaf

8

237

2-5

Espresso

1

30

47-64

Espresso, Decaf

1

30

0

Instant

8

237

63

Instant, Decaf

8

237

2

Latte or Mocha

8

237

63-126

*most brands

Although these statistics aren’t 100% exact, they can be a great reference.