Evidence reviewed 4 September 2026
Red Bull UK caffeine guide
Compare manufacturer-listed caffeine for documented Red Bull and Red Bull Sugarfree can sizes sold in Great Britain.
Quick answer
Red Bull caffeine ranges from 80 to 151 mg in this reviewed UK dataset
The lowest documented serving is Red Bull Energy Drink — 250 ml can; the highest is Red Bull Sugarfree — 473 ml can. The table below links each serving to its first-party source and review details.
2drink records
4documented servings
UKmarket only
First-party numeric data available
Red Bull publishes caffeine per named can size. Values here are not extrapolated to an unlisted size or another market.
Interactive UK menu
4 matching servingsExplore Red Bull caffeine by drink and size
Filter the documented records, then open a drink page to inspect provenance and evidence quality before using that serving in the calculator.
| Drink | Serving | Caffeine | Evidence | Actions |
|---|---|---|---|---|
| Red Bull Energy Drink | 250 ml can | 80 mg | Manufacturer listed | |
| Red Bull Sugarfree | 250 ml can | 80 mg | Manufacturer listed | |
| Red Bull Sugarfree | 355 ml can | 114 mg | Manufacturer listed | |
| Red Bull Sugarfree | 473 ml can | 151 mg | Manufacturer listed |
Scope and limitations
- Every figure links to its own source and carries an evidence label; weaker evidence is never presented as a current first-party exact value.
- Custom drinks and recipe changes may differ from a standard listed serving.
- Rankings describe caffeine quantity; they do not rate health, quality or suitability.