Starbucks Blonde Roast has more caffeine than McDonald's brewed coffee: 360mg vs 145mg in the same 16 oz grande. That is a 215mg gap, and since the servings match, the per-serving number is the whole story.
McDonald's brewed coffee vs Starbucks Blonde Roast: the numbers
| McDonald's brewed coffee | Starbucks Blonde Roast | |
|---|---|---|
| Caffeine per serving | 145mg per 16 oz medium | 360mg per 16 oz grande |
| Caffeine per fl oz | 9.1mg | 22.5mg |
| Servings to reach 400mg (FDA context) | 2.8 | 1.1 |
Sources: McDonald's brewed coffee's figure is verified in our McDonald's brewed coffee caffeine guide against Caffeine Informer (source); Starbucks Blonde Roast's figure is verified in our Starbucks Blonde Roast guide against Starbucks nutrition listing (source).
Which one should you pick?
Pick McDonald's brewed coffee when you want the lighter dose or a slower ramp, and Starbucks Blonde Roast when you actually need the bigger hit and know your tolerance. If you are stacking either with other caffeinated drinks through the day, run the math against the 400mg reference rather than guessing.
For context, the FDA cites 400mg of caffeine a day as an amount generally not associated with negative effects in healthy adults. Tolerance and health vary, so treat these numbers as information, not advice.
Related reading
- McDonald's brewed coffee: the full caffeine guide
- Starbucks Blonde Roast: the full caffeine guide
- The verified caffeine database
- Every drink compared: the comparisons index
- Compare any two of 120+ drinks
As an Amazon Associate, Barista Life earns from qualifying purchases.
Gear from this guide
FAQ
Does McDonald's brewed coffee or Starbucks Blonde Roast have more caffeine? Starbucks Blonde Roast: 360mg per 16 oz grande versus 145mg per 16 oz medium for McDonald's brewed coffee.
Which is stronger per ounce? Starbucks Blonde Roast, at about 22.5mg per fluid ounce versus 9.1mg for McDonald's brewed coffee.
Comparing caffeine? The caffeine comparison tool puts hundreds of drinks side by side, and the caffeine curfew calculator can check your cutoff time for tonight.
Get the good coffee stuff
One email a week: what we verified, what is worth buying, and what is not. No spam, unsubscribe any time.