US · Soft drinks
How much caffeine is in Pepsi Zero Sugar?
The current US 20 fl oz bottle lists 63 mg. Smaller cans and recipes sold in other markets can differ.
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; smaller packages and other markets can differ.
Estimated caffeine remaining over time
These figures apply CaffCalc’s exponential model to the adjusted 63 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 | 63 mg | 63 mg | 63 mg |
| 3 | 31.5 mg | 41.6 mg | 46.8 mg |
| 5 | 19.8 mg | 31.5 mg | 38.4 mg |
| 8 | 9.9 mg | 20.8 mg | 28.5 mg |
| 10 | 6.3 mg | 15.8 mg | 23.4 mg |
| 12 | 3.9 mg | 11.9 mg | 19.2 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 6.7 hours. The faster and slower columns show why one fixed clearance time should not be treated as a personal fact.
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