Coffee & Espresso · Drink database
Caffeine in McDonald's McDonald's Coffee
180 mg
per large 20 oz High
≈ 9.0 mg per fl oz
Halfway to the ceiling in one go. Respect.
Every serving size
| Serving | Caffeine | % of 400 mg day | Finish by (10:30 PM bed) |
|---|---|---|---|
| Small 12 oz (12 oz) | 109 mg | 27% | 4:52 PM |
| Medium 16 oz (16 oz) | 145 mg | 36% | 2:49 PM |
| Large 20 oz (20 oz) | 180 mg | 45% | 1:15 PM |
Cutoff column: average metabolism (5 h half-life), ~50 mg bedtime threshold — run it with your bedtime →
How it compares
McDonald's McDonald's Coffee 180 mg
Green tea (8 oz) 28 mg
Black tea (8 oz) 47 mg
Brewed coffee (8 oz) 96 mg
Monster (16 oz) 160 mg
Bang (16 oz) 300 mg
Spends a serious share of the 400 mg daily ceiling. Treat it as a morning-to-early-afternoon drink unless the calculator says otherwise. At 180 mg per large 20 oz, this drink is 45% of the FDA's 400 mg daily ceiling for healthy adults.
Noticeably gentler than Starbucks — a medium McCafé is roughly half a grande Pike Place.
Source: Manufacturer label · confidence: high
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Related reading: coffee vs tea vs energy drinks · when to stop before bed