First, the big reveal. A medium McDonald’s Frappé (the most popular size, let’s be honest) has about 120 milligrams of caffeine. That’s it. I know, I know—it feels like a lot more when you’re chugging it through a straw on a hot day. But 120mg is roughly the same as a standard cup of brewed coffee.
For comparison, a small is around 90mg, and a large blows past you at 150mg. So, if you’re trying to feel something, skip the small. Go large or go home, right? Just kidding. Sort of.
What About the Other Flavors?
Ah, the caramel and mocha versions. Here’s the tricky part: McDonald’s uses a coffee base for all their Frappés. So whether you’re getting the Caramel, the Mocha, or the plain ol’ Coffee Frappé—the caffeine content is identical. No cheating! The only difference is the syrup and the whipped cream mountain on top.
And yes, that whipped cream is glorious. But it won’t wake you up. Sorry.
