Diet Coke (Small) Price, Calories & Recipe (August 2026)

Nutritional Facts

Per serving · Based on a 2,000 calorie diet

Protein0g0%

Carbs0g0%

Fat0g0%

Nutrient	Amount	% DV
Calories	0kcal	0%
Total Fat	0g	0%
Saturated Fat	0g	0%
Trans Fat	0g	—
Cholesterol	0mg	0%
Sodium	50mg	2%
Total Carbohydrates	0g	0%
Total Sugars	0g	0%
Added Sugars	0g	0%
Protein	0g	0%
Calcium	2mg	0%
Iron	0mg	0%
Potassium	45mg	1%
Caffeine	0mg	—

McDonald's Diet Coke (Small) Complete Information

A McDonald's Diet Coke (Small) costs $2.69 and carries 0 calories, which makes it one of only three true zero calorie drinks on the entire McDonald's menu.

The other two are $2.49 Dasani water and the $2.69 unsweetened iced tea. Everything else on the drinks board carries something, including the frozen drinks at around 60 calories that people often assume are lighter than they are. Diet Coke benefits from the same fountain setup as the regular Coke: filtered water, pre chilled syrup and refrigerated lines, which is why it holds carbonation better than most fountain diet drinks. It is also the standard free swap inside any meal bundle, so choosing it over regular Coke costs nothing and removes 200 calories. Pair it with anything on the menu.

Health Insight

At 0 calories, this one is on the lighter side of the menu.

What Is in a McDonald's Diet Coke (Small)?

2 components, 11 ingredients in total, exactly as McDonald's lists them.

Main Ingredients10
- Carbonated Water
- Caramel Color
- Phosphoric Acid
- Sodium Saccharin
- Potassium Benzoate (To Protect Taste)
- Natural Flavors
- Citric Acid
- Caffeine
- Potassium Citrate
- Aspartame
Ice1
- Ice.

Pairs Well Together

Perfect Combination

A Diet Coke (Small) on its own is rarely the whole order, and Apple Slices rounds it out.

$2.69 Diet Coke (Small)

$1.35 Apple Slices

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More from the Drinks Menu

Coca-Cola (Small) No Ice

200 Calories

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Sprite (Small) No Ice

190 Calories

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$2.69

Hi-C Orange (Small) No Ice

220 Calories

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$2.69

Dr Pepper (Small) No Ice

190 Calories

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Add Up the Calories in Diet Coke (Small)

Build an order around Diet Coke (Small) and watch the calories, fat, protein and sodium add up as you go, straight from McDonald's published panels.

McDonald's Nutrition

Diet Coke (Small) Questions

How much is a Diet Coke at McDonald's?

A small Diet Coke is $2.69 at a typical US restaurant, a median from live restaurant listings with the range shown under the price above.

How many calories in a McDonald’s Diet Coke?

0 calories, one of only three true zeros on the menu alongside Dasani water and unsweetened iced tea.

What zero calorie drinks does McDonald’s have?

Diet Coke, $2.49 Dasani water and $2.69 unsweetened iced tea. The zero sugar Red Bull on the McCafe menu is close at 100 calories but not zero.

Is swapping to Diet Coke free in a meal?

Yes, at every restaurant, and it removes 200 calories against regular Coke. Fountain swaps inside a bundle do not change the price.

Why does McDonald’s Diet Coke taste different?

The same fountain setup as the regular Coke: filtered water, pre chilled syrup and refrigerated lines. Diet drinks lose their edge fastest when a fountain is warm, so the difference is more noticeable here than on regular Coke.