Starbucks Caffe Americano vs Dunkin hot coffee (medium): which has more caffeine?

Starbucks Caffe Americano carries more total caffeine per serving (225mg per 16 oz grande vs 210mg per 14 oz medium), but ounce for ounce Dunkin hot coffee (medium) is actually the stronger drink at about 15mg per fluid ounce against 14. Which one "has more caffeine" depends on whether you measure the container or the concentration.

Starbucks Caffe Americano vs Dunkin hot coffee (medium): the numbers

Sources: Starbucks Caffe Americano's figure is verified in our Starbucks Caffe Americano caffeine guide against Starbucks nutrition listing (source); Dunkin hot coffee (medium)'s figure is verified in our Dunkin hot coffee (medium) guide against Tasting Table / Dunkin figures (source).

Which one should you pick?

Pick Dunkin hot coffee (medium) when you want the lighter dose or a slower ramp, and Starbucks Caffe Americano 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

• Starbucks Caffe Americano: the full caffeine guide
• Dunkin hot coffee (medium): the full caffeine guide
• The verified caffeine database
• Every drink compared: the comparisons index
• Compare any two of 120+ drinks

FAQ

Does Starbucks Caffe Americano or Dunkin hot coffee (medium) have more caffeine? Starbucks Caffe Americano: 225mg per 16 oz grande versus 210mg per 14 oz medium for Dunkin hot coffee (medium).

Which is stronger per ounce? Dunkin hot coffee (medium), at about 15.0mg per fluid ounce versus 14.1mg for Starbucks Caffe Americano.