Burger King Diet Coke Price Nutrition and Allergen

Diet Coke

💵 Burger King Diet Coke Price & Calories

PriceCalories
$3.490

When you’re craving that bold cola flavor without the sugar, Burger King Diet Coke is the go-to beverage of choice. It’s crisp, refreshing, calorie-free, and perfectly pairs with anything from a Whopper to Chicken Fries.

In the world of fast food, where options can be heavy on sugar and calories, Diet Coke at Burger King offers a refreshing alternative for health-conscious guests. But how does it compare to regular Coca-Cola or other soft drinks on the BK menu?


Ingredients in Burger King Diet Coke

IngredientDescription
Carbonated WaterGives the drink its refreshing fizz
Caramel ColorCreates the signature brown color
AspartameSugar substitute used for sweetness
Phosphoric AcidAdds tartness and flavor complexity
Natural FlavorsCoca-Cola’s proprietary blend of flavoring
Potassium BenzoatePreserves freshness and shelf life
CaffeineAdds an energizing lift (~46mg in a medium size)

💡 Note: While aspartame is FDA-approved, it’s an artificial sweetener and may not be preferred by everyone.


Allergen Information

Diet Coke is free from all major food allergens, making it one of the safest beverage options on the BK menu.

AllergenPresent
Milk✘ No
Egg✘ No
Wheat/Gluten✘ No
Soy✘ No
Fish/Shellfish✘ No
Peanuts/Nuts✘ No
Sesame✘ No

Vegan, gluten-free, and nut-free.


Nutrition Facts for Burger King Diet Coke (Medium)

NutrientAmount
Calories0 Cal
Total Fat0g
Sodium40mg
Total Carbohydrates0g
Sugars0g
Protein0g
Caffeine~46mg

It’s a great fit for low-calorie or sugar-controlled diets.


Available Sizes of Diet Coke at Burger King

SizeApprox. OuncesCaloriesPrice Range
Small~16 oz0 Cal~$2.99
Medium~21 oz0 Cal~$3.49
Large~30 oz0 Cal~$3.99

🔥 You can upsize or downsize your drink when ordering à la carte or as part of a meal.


Why Choose Diet Coke at Burger King?

Here’s why Burger King Diet Coke continues to be a fan favorite:

  • No sugar, no calories
  • Fountain-fresh flavor
  • Pairs well with any BK item
  • Caffeinated — gives an energy boost
  • Available in all combo meals

It’s the ideal beverage for keto, diabetic, intermittent fasting, or anyone trying to reduce sugar intake.


Diet Coke vs. Other BK Beverages

DrinkCaloriesCaffeineSweetener TypeNotes
Diet Coke0 Cal~46mgAspartameZero sugar, iconic flavor
Coca-Cola330 Cal~34mgHigh fructose corn syrupHigh sugar content
Coca-Cola Zero Sugar0 Cal~34mgAspartame & Acesulfame KCloser in taste to regular Coke
Sprite310 Cal0mgHFCSNo caffeine
Dr Pepper280 Cal~41mgHFCSBold, spiced flavor
Unsweetened Iced Tea0 Cal~25mgNoneCaffeine without sweetness

How to Order Diet Coke at Burger King

You can order Diet Coke through:

  • 🏪 In-store (kiosk or counter)
  • 🚗 Drive-Thru
  • 📲 Burger King App (with Royal Perks rewards)
  • 🛵 Delivery platforms like Uber Eats, Grubhub, DoorDash

💡 Most combo meals include a medium Diet Coke by default, but you can easily customize your drink during checkout.


Diet Coke Refill Policy

  • 🧍‍♂️ Dine-in customers: Most locations offer free refills on fountain drinks
  • 🚗 Drive-thru and delivery: No refills available
  • 📱 Mobile app pickup: One drink per order, no refill unless dining in

Best Menu Pairings with Diet Coke

BK Menu ItemWhy It Pairs Well
WhopperCuts through richness with carbonation
Spicy Royal Crispy WrapBalances the heat with refreshment
Bacon KingZero sugar helps lighten the meal
Chicken FriesGreat salty snack + fizzy drink
Veggie Burger / Impossible WhopperKeeps it plant-based and sugar-free

Is Diet Coke Healthy?

While zero-calorie and sugar-free, Diet Coke still contains:

  • Artificial sweeteners (aspartame)
  • Caffeine

So it’s healthier than sugary sodas, but moderation is key — especially if you’re sensitive to caffeine or artificial sweeteners.


Final Verdict

✔️ If you’re looking for:

  • A zero-calorie drink
  • Sugar-free refreshment
  • Something to balance a high-calorie meal
  • A fizzy beverage with classic cola flavor
  • A diabetic- or keto-friendly soda

…then the Burger King Diet Coke is the perfect choice.


Burger King Diet Coke FAQs

1. How much is a Diet Coke at Burger King?

The medium size costs around $3.49, depending on your location.

2. Does Burger King have Diet Coke?

Yes — it’s a permanent beverage option at most U.S. locations.

3. How many calories in Diet Coke?

Zero. It’s completely calorie-free.

4. Is Diet Coke caffeine-free?

No — it contains around 46mg of caffeine per medium cup.

5. Is Diet Coke vegan?

Yes, it is vegan and gluten-free.

6. Can I get Diet Coke in a combo meal?

Yes — you can swap it for any other drink in your combo meal.

7. Does Diet Coke have sugar?

No. It’s sweetened with aspartame, a sugar substitute.

8. Is Diet Coke keto-friendly?

Yes — it’s keto, diabetic, and low-carb diet approved.

9. Can I order Diet Coke via delivery?

Yes — it’s available on all major platforms: DoorDash, Uber Eats, Grubhub, etc.

10. Does it taste the same as Coke Zero?

No. Diet Coke has a lighter flavor and different blend of sweeteners.

11. Can I refill Diet Coke at BK?

Only if you’re dining in at a location with self-serve fountains.

12. Does Diet Coke have aspartame?

Yes — that’s what gives it its sweet flavor without sugar.

13. Is Diet Coke safe for diabetics?

Generally, yes — but consult your doctor for individual dietary needs.

14. Can I get Diet Coke in small or large sizes?

Yes — small, medium, and large sizes are usually available.

15. Is Diet Coke offered in bottles at Burger King?

Usually, fountain soda is served, but some locations may offer bottled drinks.

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