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Independent guide. Not affiliated with or endorsed by Burger King or Restaurant Brands International.Prices are set by each restaurant and vary.
Illustration of Diet Coke
Illustration, not a photo of the actual product.
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Diet Coke: price, calories and ingredients

A Diet Coke (medium) costs about $2.69 at a typical US Burger King. It has 0 calories.

Typical price · medium

$2.69

1 price report
National range shown. Local prices appear once your state has enough reports.
0calories
0 gprotein
0 gfat
70 mgsodium

Diet Coke sizes and prices

Size or buildCaloriesProteinTypical priceRange
Value00 g$3.19$2.69–$3.69
Small00 g$3.19$2.69–$3.69
Medium00 g$2.691 source so far
Large00 g$3.19$2.69–$3.69

Starting prices come from public price trackers and are replaced as we collect in-restaurant and app prices. Meal prices usually assume a medium side and drink.

Diet Coke price by state

WhereTypicalRangeLast seen
United States (all reports)$2.691 source so farSep 2026
CaliforniaCollecting reports––
TexasCollecting reports––
FloridaCollecting reports––
New YorkCollecting reports––

Seen a Diet Coke price in your state? Add it

What's in the Diet Coke

Zero-calorie Diet Coke from the fountain, in four cup sizes.

Full ingredient list (1 components)

Diet Coke®: Carbonated Water, Caramel Color, Phosphoric Acid, Sodium Saccharin, Natural Flavors, Citric Acid, Potassium Citrate, Potassium Benzoate (To Protect Taste), Caffeine

Allergens

MilkNot listed
EggNot listed
FishNot listed
ShellfishNot listed
Tree nutsNot listed
PeanutsNot listed
WheatNot listed
SoyNot listed
SesameNot listed

From Burger King's published US allergen information (Sep 2026). Kitchens share equipment, so cross-contact is possible. If you have a severe allergy, check with the restaurant.

Diet Coke questions

How much is a Diet Coke at Burger King?

The Diet Coke costs about $2.69 at a typical US restaurant. Prices are set by each franchise, so confirm yours in the official app.

How many calories are in a Diet Coke?

Calories by size or build: Value: 0; Small: 0; Medium: 0; Large: 0.

What allergens are in the Diet Coke?

Burger King lists none of the major allergens as ingredients, but kitchens share equipment, so cross-contact is possible.

When can I order the Diet Coke?

It is on the all-day menu. At most restaurants it is available once breakfast ends at 10:30 AM, and some locations serve it all day.

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