General reference · Coffee & café
How much caffeine is in Brewed coffee?
This is a general estimate, not a figure for a particular brand. We haven’t rechecked the original USDA entry, its version or the serving conversion yet.
A useful general estimate for an ordinary cup of brewed coffee. Bean, roast and preparation can change the dose substantially.
Interactive serving
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Where this figure comes from
- Source
- USDA FoodData Central
- Source type
- Government database
- Market
- General reference
- How we got the amount
- Authoritative reference
- Source reviewed
- 21 August 2026
Representative reference value; not a promise for every bean or brewing method. This link opens the USDA database, not the exact food entry. Treat the serving amount as approximate. The date shown here does not mean we rechecked the original entry on that day.
Estimated caffeine remaining over time
These figures apply CaffCalc’s exponential model to the adjusted 95 mg starting value. They are calculations, not measurements of caffeine in a particular person.
| Hours elapsed | 3-hour half-life | 5-hour half-life | 7-hour half-life |
|---|---|---|---|
| 0 | 95 mg | 95 mg | 95 mg |
| 3 | 47.5 mg | 62.7 mg | 70.6 mg |
| 5 | 29.9 mg | 47.5 mg | 57.9 mg |
| 8 | 15.0 mg | 31.3 mg | 43.0 mg |
| 10 | 9.4 mg | 23.8 mg | 35.3 mg |
| 12 | 5.9 mg | 18.0 mg | 29.0 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 9.6 hours. The faster and slower columns show why one fixed clearance time shouldn’t be treated as a personal fact.
Use this caffeine value
Use this amount in a calculation, or save the drink to your tracker on this device.
Same category, lower documented dose
Looking for less caffeine?
Here are some drinks in the same category with less listed caffeine. This compares caffeine only, not overall health benefits. Check each drink’s source note before choosing.