US · Soft drinks
How much caffeine is in Pepsi?
Caffeine content for one standard US can. Pepsi notes that formulations can change, so check current packaging.
Interactive serving
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Source and provenance
- Source
- PepsiCo Product Facts
- Source type
- Manufacturer
- Market
- US
- Value basis
- Manufacturer listed
- Source reviewed
- 21 August 2026
US product and serving; current packaging is the final reference.
Estimated caffeine remaining over time
These figures apply CaffCalc’s exponential model to the adjusted 38 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 | 38 mg | 38 mg | 38 mg |
| 3 | 19 mg | 25.1 mg | 28.2 mg |
| 5 | 12.0 mg | 19 mg | 23.2 mg |
| 8 | 6.0 mg | 12.5 mg | 17.2 mg |
| 10 | 3.8 mg | 9.5 mg | 14.1 mg |
| 12 | 2.4 mg | 7.2 mg | 11.6 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 3.0 hours. The faster and slower columns show why one fixed clearance time should not be treated as a personal fact.
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Same category, lower documented dose
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These suggestions use documented servings in the same category and compare caffeine quantity only. Check the evidence badge before relying on a reported figure.