McDonald's McCafe Latte contains 71 mg of caffeine per Small 12 oz (355 ml / 12 oz). That is about 75% of the caffeine in a typical 8 oz cup of brewed coffee (about 95 mg). Concentration: 30 mg per 100 ml.
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McDonald's McCafe Latte Caffeine Content by Serving
Figures are for McCafe Latte (McDonald's).
| Serving | Volume | Caffeine | Per 100 ml | Level |
|---|---|---|---|---|
| Small 12 oz | 355 ml / 12 oz | 71 mg | 20 mg | Low |
| Medium 16 oz | 473 ml / 16 oz | 142 mg | 30 mg | Moderate |
| Large 21 oz | 621 ml / 21 oz | 178 mg | 28.7 mg | High |
Source: caffeine figures from Caffeine Informer (figures obtained from McDonald's customer service), accessed 2026-06-11. Values can vary by batch, location, and preparation; check the label or the source for the latest figures.
How McDonald's McCafe Latte Compares to Coffee
At 71 mg per Small 12 oz, McDonald's McCafe Latte delivers about 75% 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 McDonald's McCafe Latte Before Bed
With caffeine's median 5-hour half-life, a Small 12 oz of McDonald's McCafe Latte (71 mg) needs about 2 h 32 min to fall under 50 mg, the level where most people can fall asleep normally. That puts the last call at 7:15 PM (19:15) for a 10 PM bedtime and 8:15 PM (20:15) for an 11 PM bedtime. Individual half-lives range from roughly 2 to 12 hours, so treat these as a starting point.
The McDonald's McCafe Latte sleep cutoff page has last-call times for four bedtimes, and the caffeine half-life calculator personalizes the curve to your metabolism.
