Small Diet Coke Price at McDonald's (2026)
A Small Diet Coke costs £1.99 at McDonald's in United Kingdom (updated July 2026).
A Small Diet Coke® at McDonald's costs £1.99 in the United Kingdom as of July 2026. That's about 2% below the average McDonald's Saver Menu® item — the 2nd-cheapest of 6 we track. It has 1 calories. It's available at around 41 McDonald's locations across the United Kingdom. Prices are sourced from delivery platforms and refreshed regularly. Browse the latest McDonald's Saver Menu® prices and find the cheapest pick on MenuPriceToday.
Nutrition
0%
Daily Value
Ingredients⌄
Diet Coke Ingredients: Carbonated Water, Colour (Caramel), Sweeteners (Aspartame*, Acesulfame K), Flavourings (including Caffeine), Phosphoric Acid, Citric Acid, Preservative (Sodium Benzoate), Acidity Regulator (Sodium Citrate), Anti-foaming Agent (Dimethyl Polysiloxane). *contains a source of Phenylalanine. We produce our food in kitchens where allergens are handled by our people, and where equipment and utensils are used for multiple menu items, including those containing allergens. Although your meal is prepared with care, we cannot guarantee it will be allergen free, even after ingredient
% DV = % of daily value based on a 2,000 kcal diet. Nutrition data from Mcdonalds's official information. For informational purposes only.
Ingredients
Diet Coke Ingredients: Carbonated Water, Colour (Caramel), Sweeteners (Aspartame*, Acesulfame K), Flavourings (including Caffeine), Phosphoric Acid, Citric Acid, Preservative (Sodium Benzoate), Acidity Regulator (Sodium Citrate), Anti-foaming Agent (Dimethyl Polysiloxane). *contains a source of Phenylalanine. We produce our food in kitchens where allergens are handled by our people, and where equipment and utensils are used for multiple menu items, including those containing allergens. Although your meal is prepared with care, we cannot guarantee it will be allergen free, even after ingredient
Frequently asked questions
How much does Small Diet Coke cost at Mcdonalds in United Kingdom?
Small Diet Coke costs £1.99 at Mcdonalds in United Kingdom as of July 2026. Prices are sourced from Uber Eats and updated regularly on MenuPriceToday.
How many calories are in Small Diet Coke?
Small Diet Coke has 1 calories, fat: 0.0g. Nutrition is from Mcdonalds's official information.
Where can I order Small Diet Coke in United Kingdom?
You can order Small Diet Coke from Mcdonalds via Uber Eats in United Kingdom. Compare prices on MenuPriceToday first so you never overpay.
How often are Mcdonalds prices updated?
We refresh Mcdonalds menu prices regularly from delivery platforms, so the Small Diet Coke price you see reflects the latest available data.