Caffeine Count - McDonalds Iced Coffee

Super low cost when compared to your local café but is the amount of caffeine in a McDonalds iced coffee large or small?

While McDonalds does not post caffeine numbers for their iced coffee, we've estimated it for you based on each size - small, medium, and large.

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By Size - Caffeine in McDonalds Iced Coffee

1. Small (8 fl oz) - 94mg caffeine, 140 calories
2. Medium (11.5 fl oz) - 133 mg caffeine, 180 calories
3. Large (17 fl oz) - 200 mg caffeine, 260 calories

Let's compare to other popular brands:

Starbucks:

• Tall (12 fl oz) - 120mg caffeine, 60 calories
• Grande (16 fl oz) - 165mg caffeine, 80 calories
• Venti (24 fl oz) - 235 mg caffeine, 120 calories
• Trenta (30 fl oz) - 280 mg caffeine, 160 calories

Dunkin':

• Small (10 fl oz) - 198mg caffeine, 100 calories 
• Medium (24 fl oz) - 297mg caffeine, 160 calories
• Large (20 fl oz) - 396mg caffeine, 500 calories

Related Article: How much caffeine is in a shot of espresso?