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Caffeine in Coffee by Cup Size – Quick Reference
Knowing how much caffeine is in your coffee can help you make smarter choices for your energy levels and health. This quick chart shows the average caffeine content for popular cup sizes, so you can see at a glance how your daily brew stacks up.
| Cup Size | Caffeine (mg) |
|---|---|
| 8 oz | 95 |
| 12 oz | 142 |
| 16 oz | 190 |
| 20 oz | 237 |
| 24 oz | 285 |
CTA: See the full 2–40 oz caffeine chart →
Whether you sip a modest 8 oz mug or tackle a towering 24 oz cup, caffeine content can add up quickly. Use this guide to keep your intake in check, and explore our full chart for every size from 2 oz to 40 oz — perfect for coffee lovers who want both flavor and balance.