Starbucks Coffee Frappuccino contains 70 mg of caffeine per Tall 12 oz (355 ml / 12 oz). That is about 74% of the caffeine in a typical 8 oz cup of brewed coffee (about 95 mg). Concentration: 20.1 mg per 100 ml.
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Starbucks Coffee Frappuccino Caffeine Content by Serving
Figures are for Coffee Frappuccino (handcrafted) (Starbucks).
| Serving | Volume | Caffeine | Per 100 ml | Level |
|---|---|---|---|---|
| Tall 12 oz | 355 ml / 12 oz | 70 mg | 19.7 mg | Low |
| Grande 16 oz | 473 ml / 16 oz | 95 mg | 20.1 mg | Moderate |
| Venti 24 oz | 710 ml / 24 oz | 130 mg | 18.3 mg | Moderate |
Source: caffeine figures from Caffeine Informer Starbucks guide (values sourced from starbucks.com), accessed 2026-06-11. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.
How Starbucks Coffee Frappuccino Compares to Coffee
At 70 mg per Tall 12 oz, Starbucks Coffee Frappuccino delivers about 74% of the caffeine in 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 Starbucks Coffee Frappuccino Before Bed
With caffeine's median 5-hour half-life, a Tall 12 oz of Starbucks Coffee Frappuccino (70 mg) needs about 2 h 26 min to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 7:30 PM (19:30) for a 10 PM bedtime and 8:30 PM (20:30) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.
The Starbucks Coffee Frappuccino sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.
