Caffeine content varies widely across drinks — and even within the same drink depending on brand, serving size, and preparation. The numbers below are approximate ranges based on commonly available data. Individual products may fall outside these ranges.
Coffee
| Drink |
Serving Size |
Caffeine Range |
| Drip coffee |
8 oz |
80–120 mg |
| Pour over |
8 oz |
80–120 mg |
| French press |
8 oz |
80–130 mg |
| Espresso (single shot) |
1 oz |
60–75 mg |
| Espresso (double shot) |
2 oz |
120–150 mg |
| Americano (double shot) |
8 oz |
120–150 mg |
| Cold brew (ready-to-drink) |
8 oz |
100–200 mg |
| Cold brew (concentrate, undiluted) |
2 oz |
100–200 mg |
| Moka pot |
2 oz |
60–130 mg |
| AeroPress |
8 oz |
80–120 mg |
| Instant coffee |
8 oz |
30–90 mg |
| Decaf coffee |
8 oz |
2–15 mg |
Tea
| Drink |
Serving Size |
Caffeine Range |
| Black tea |
8 oz |
40–70 mg |
| Green tea |
8 oz |
20–45 mg |
| White tea |
8 oz |
15–30 mg |
| Matcha |
8 oz |
60–80 mg |
| Herbal tea |
8 oz |
0 mg |
| Chai (tea-based) |
8 oz |
25–50 mg |
Energy Drinks and Other Sources
| Drink |
Serving Size |
Caffeine Range |
| Red Bull |
8.4 oz |
80 mg |
| Monster Energy |
16 oz |
160 mg |
| Celsius |
12 oz |
200 mg |
| 5-Hour Energy |
2 oz |
200 mg |
| Coca-Cola |
12 oz |
34 mg |
| Diet Coke |
12 oz |
46 mg |
| Dark chocolate |
1 oz |
12–25 mg |
Caffeine Concentration: mg per Fluid Ounce
Serving size can be misleading when comparing drinks. This table normalizes everything to milligrams per fluid ounce, making it easier to compare the actual strength of each beverage regardless of how it is typically served.
Coffee
| Drink |
mg per fl oz |
| Espresso |
60–75 mg/fl oz |
| Cold brew concentrate (undiluted) |
50–100 mg/fl oz |
| Moka pot |
30–65 mg/fl oz |
| Americano (double shot) |
15–19 mg/fl oz |
| Cold brew (ready-to-drink) |
13–25 mg/fl oz |
| French press |
10–16 mg/fl oz |
| Drip coffee |
10–15 mg/fl oz |
| Pour over |
10–15 mg/fl oz |
| AeroPress |
10–15 mg/fl oz |
| Instant coffee |
4–11 mg/fl oz |
| Decaf coffee |
0.3–2 mg/fl oz |
Tea
| Drink |
mg per fl oz |
| Matcha |
8–10 mg/fl oz |
| Black tea |
5–9 mg/fl oz |
| Chai (tea-based) |
3–6 mg/fl oz |
| Green tea |
3–6 mg/fl oz |
| White tea |
2–4 mg/fl oz |
| Herbal tea |
0 mg/fl oz |
Energy Drinks and Other Sources
| Drink |
mg per fl oz |
| 5-Hour Energy |
100 mg/fl oz |
| Celsius |
17 mg/fl oz |
| Monster Energy |
10 mg/fl oz |
| Red Bull |
9.5 mg/fl oz |
| Dark chocolate |
12–25 mg/fl oz |
| Diet Coke |
3.8 mg/fl oz |
| Coca-Cola |
2.8 mg/fl oz |
Key takeaways: Espresso is the most concentrated mainstream coffee drink at 60–75 mg per fluid ounce — roughly 6× more concentrated than drip coffee. Cold brew concentrate rivals espresso when undiluted. 5-Hour Energy is the most concentrated product on this list at 100 mg/fl oz, but its 2 oz serving keeps the total dose comparable to a double espresso.
Important Notes
Caffeine values vary significantly based on:
- Bean variety: Robusta beans contain roughly twice the caffeine of Arabica
- Roast level: Light roasts are marginally higher in caffeine than dark roasts
- Brew time: Longer extraction pulls more caffeine
- Serving size: Larger servings contain more caffeine
- Brand and preparation: Commercial products vary; check labels for specifics
The FDA considers up to 400 mg of caffeine per day generally safe for healthy adults. Individual tolerance varies considerably.
This chart is for general informational purposes only and is not medical advice. Caffeine affects people differently. Speak with a qualified healthcare professional if you have concerns about caffeine intake, especially regarding heart conditions, pregnancy, anxiety, or medication interactions.
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