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Americano Calories, Nutrition & Caffeine by Option

Dunkin Americano calories, nutrition facts, and caffeine by size and option. Compare Small, Medium, and Large to make the best choice for your goals.

SmallMediumLarge 1 dairy options 237–371 mg caffeine 5–10 kcal

Nutrition Calculator

Americano Calories by Size and Option

Select a size, dairy option to see the full Dunkin' nutrition breakdown — calories, fat, carbs, sugar, protein, and caffeine. Different combinations can vary significantly in calories and sugar. The daily value percentages (DV%) are based on a 2,000 calorie diet.

Calories 5kcal
Total Fat 0g
Total Carbs 1g
Sugar 0g
Protein 0g
Caffeine 237mg

Showing: Small · None — 5 kcal

  • Lowest option: 5 kcal (Small, none)
  • 237 mg caffeine in this selection
  • More keto-compatible (≤12g net carbs)
% Daily Value Based on 2,000 kcal/day
Calories
5kcal 0%
Total Fat
0g 0%
Saturated Fat
0g 0%
Cholesterol
0mg 0%
Sodium
15mg 1%
Total Carbs
1g 0%
Dietary Fiber
0g 0%
Added Sugars
0g 0%
Protein
0g 0%

* % Daily Values based on a 2,000 calorie diet.

Calorie Breakdown

Dunkin' Americano Calories

The Dunkin' Americano ranges from 5 kcal (Small, none) to 10 kcal (Large, none).

Lowest 5 kcal · Small , none
Highest 10 kcal · Large , none

How long to burn off 5 kcal

Approximate values for a 70 kg adult. Updates with your selection above.

🚶 Walking
1 min
🚴 Cycling
1 min
🏃 Running
0 min
🏊 Swimming
1 min
🧘 Yoga
2 min

💡 Choosing a smaller size and avoiding add-ins is the most effective way to reduce calories on Dunkin' drinks.

Keto Suitability

Is the Dunkin' Americano Keto-Friendly?

Net carbs (total carbohydrates minus dietary fibre) at or below 12g is considered more keto-compatible. Values update as you change size and options above.

✓ More keto-compatible

Net carbs for this selection are 1g — within the 12g threshold.

To reduce carbs in this Dunkin' order:

  • Choose the smallest available size
  • Some dairy alternatives are lower in carbs — check the comparison table below
  • Black coffee and straight espresso are the lowest-carb options at Dunkin'

Caffeine Content

Dunkin' Americano Caffeine & Metabolism

The Dunkin' Americano contains high caffeine. Caffeine has a half-life of around 5–6 hours in most adults — meaning a significant amount can still be active well into the evening if consumed in the afternoon.

Small 237 mg High
Medium 284 mg High
Large 371 mg High

Caffeine metabolism & sleep cut-off

Enter when you plan to drink this. The chart shows estimated caffeine remaining over the next 8 hours. Caffeine remaining after 10 pm is associated with reduced sleep quality.

Using: Small (237 mg)
Keep in mind: caffeine content in Dunkin' drinks stays constant regardless of dairy or sweetener choice — it's determined by the espresso or coffee base. The FDA recommends most healthy adults stay under 400 mg/day.

Size Comparison

How Calories Change by Size

Calories, sugar, and caffeine all increase with cup size. Reference: None.

SizeCaloriesTotal Fat CarbsSugarProteinCaffeine
Small 5 kcal 0g 1g 0g 0g 237 mg
Medium 10 kcal 0g 2g 0g 0g 284 mg
Large 10 kcal 0g 2g 0g 0g 371 mg

Going from Small to Large adds 5 kcal and 0.0g sugar.

FAQ

Dunkin' Americano — Common Questions

The most relevant questions about calories, caffeine, dairy options, and keto suitability for this Dunkin' drink.

The Dunkin' Americano ranges from 5 kcal (Small, none) to 10 kcal (Large, none). A Small starts at 5 kcal.

The lowest-calorie option is the Small with none at 5 kcal. Choosing a smaller size is the most effective way to reduce calories.

A Small contains 237 mg of caffeine, and a Large contains 371 mg. This is high caffeine. Note that dairy and sweetener choices do not affect caffeine content — it's set by the coffee or espresso base.

With 1g net carbs in a Small, this is one of the more keto-compatible options at Dunkin'.