How much caffeine is in coffee, tea and cola?
Most of us think of caffeine in cups and cans, not milligrams. This table gives the approximate caffeine in everyday servings.
| Drink | Serving | Approximate caffeine |
|---|---|---|
| Filter coffee | 1 mug | ≈ 90–110 mg |
| Espresso | Single shot | ≈ 60–80 mg |
| Americano, latte, cappuccino | Double shot | ≈ 130 mg |
| Black tea | 1 mug | ≈ 55 mg |
| Green tea | 1 mug | ≈ 20–30 mg |
| Matcha | 1 serving (≈ 2 g powder) | ≈ 40–70 mg |
| Decaf coffee | 1 mug | ≈ 2–15 mg |
| Cola | 1 can (330 ml) | ≈ 33 mg |
| Energy drink | 250 ml / 500 ml | ≈ 80 / 160 mg |
| Turkish coffee | 1 small cup | ≈ 60 mg (often given as 50–65 mg) |
| Dark chocolate | 50 g | ≈ 25 mg |
Why there is no exact number
The same drink rarely carries the same caffeine twice. For coffee, the beans, the grind and how much coffee goes in all matter; for tea, how long it brews and how strong it is poured. That is why these numbers are best read as estimates.
How Caffeine Tracker uses them
When you pick a drink and a serving under “What did you drink?”, Caffeine Tracker estimates its caffeine from values like these and shows it as “≈ 110 mg”. If you know your drink’s real amount, “Change amount” lets you correct it.
What the official limits say
The European Food Safety Authority (EFSA) concluded that, for healthy adults, single doses up to 200 mg and up to 400 mg over a day do not raise safety concerns. That is cited general information, not a target or personal advice.
Sources: EUFIC – caffeine in drinks · EFSA – caffeine · Coca-Cola – caffeine in a can · Tufts – decaf · Matcha caffeine
See what's still in you now →General information with sources, not medical advice.