G FUEL Energy Can contains 300 mg of caffeine per 16 oz can (473 ml / 16 oz). That is about 3 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). Concentration: 63.4 mg per 100 ml.
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G FUEL Energy Can Caffeine Content by Serving
Figures are for G FUEL Energy (16 oz can).
| Serving | Volume | Caffeine | Per 100 ml | Level |
|---|---|---|---|---|
| 16 oz can | 473 ml / 16 oz | 300 mg | 63.4 mg | Very High |
Source: caffeine figures from G FUEL (official), accessed 2026-06-11. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.
How G FUEL Energy Can Compares to Coffee
At 300 mg per 16 oz can, G FUEL Energy Can delivers about 3 times the caffeine of a typical 8 oz cup of brewed coffee (about 95 mg). For a wider comparison across drinks, try the caffeine comparison tool or browse the full caffeine database.
When to Stop Drinking G FUEL Energy Can Before Bed
With caffeine's median 5-hour half-life, a 16 oz can of G FUEL Energy Can (300 mg) needs about 12 h 56 min to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 9:00 AM (09:00) for a 10 PM bedtime and 10:00 AM (10:00) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.
The G FUEL Energy Can sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.
