UK · Energy drinks
How much caffeine is in Red Bull Sugarfree?
Red Bull GB lists caffeine for three Sugarfree can sizes. This record keeps each published serving separate.
Interactive serving
Adjust this serving
Choose a documented size, then change the quantity. The caffeine total and timeline update together.
Caffeine by serving
| Serving | Caffeine | Basis |
|---|---|---|
| 250 ml can | 80 mg | Manufacturer listed |
| 355 ml can | 114 mg | Manufacturer listed |
| 473 ml can | 151 mg | Manufacturer listed |
Source and provenance
- Source type
- Manufacturer
- Market
- UK
- Value basis
- Manufacturer listed
- Source reviewed
- 4 September 2026
Official Great Britain page; values are listed per complete can.
Estimated caffeine remaining over time
These figures apply CaffCalc’s exponential model to the adjusted 80 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 | 80 mg | 80 mg | 80 mg |
| 3 | 40 mg | 52.8 mg | 59.4 mg |
| 5 | 25.2 mg | 40 mg | 48.8 mg |
| 8 | 12.6 mg | 26.4 mg | 36.2 mg |
| 10 | 7.9 mg | 20 mg | 29.7 mg |
| 12 | 5 mg | 15.2 mg | 24.4 mg |
With the central five-hour model, the estimate falls below 25 mg after approximately 8.4 hours. The faster and slower columns show why one fixed clearance time should not be treated as a personal fact.
Use this caffeine value
Carry the selected serving into a calculation or save it for quicker private tracking on this device.