Diet Coke Small
£1.49*
Updated 12 September 2026 · price from a third party listing
Diet Coke Small sits 2nd of 10 on price in McDonald's Saver Menu section, at £1.49. Updated 12 September 2026.
Diet Coke has a lighter taste, with no calories or sugar. Enjoy one with your meal or on its own.
The £1.49 figure came from a third party listing rather than from McDonald's, which means it may reflect a delivery menu. Delivery prices sit above in restaurant prices before any fee is added, so treat this as the ceiling rather than the till price.
Allergens McDonald's declares
None of the 14 regulated allergens is listed as an ingredient.
Source: McDonald's UK allergen booklet, August 2026. Shared kitchens mean cross-contamination is possible. Ask in the restaurant if an allergy is severe.
Everything You Need to Know About McDonald's Diet Coke Small
How to order Diet Coke Small at McDonald's
Counter, kiosk and app all carry it. The McDonald's app adds collection and delivery. It is filed under Saver Menu. Branch by branch availability varies, which the app reflects once you choose a location.
McDonald's Diet Coke Small price in 2026
The McDonald's Diet Coke Small price in 2026 is £1.49 on the figures we hold, with branch to branch variation between £1.49 and £1.89. The figure came from a third party listing rather than from McDonald's, so read it as a ceiling. Within the Saver Menu section that puts it 2nd of 10 on price. Expect more at airport, motorway and station branches than on a high street, and more again through a delivery app.
Where it sits on price
1 item costs less than this one in the Saver Menu section and 8 cost more, out of 10 we hold a price for. The closest thing to it on price is Coca-Cola Zero Sugar Small at £1.49, so those two are the real comparison when you are deciding.
Diet marking
McDonald's marks this as vegan and vegetarian. That is the chain's own classification of the recipe rather than a statement about how it is cooked, and vegan marking in particular sits alongside shared equipment at most of these brands.
Finding it near you
We list 119 McDonald's branches across 4 of the four UK nations, with the Leeds postcode area holding the most at 9. Menus vary by site, so a listing here is national rather than a promise about your nearest one. The McDonald's app confirms it in seconds.
Allergens declared
McDonald's lists none of the 14 allergens UK law regulates as an ingredient of this item. A declaration covers the recipe and not the kitchen, and every one of these chains prepares food in shared fryers and on shared surfaces. For a severe allergy the only reliable check is asking staff on the day.
Pro Tips for Ordering Diet Coke Small
Sizes and sugar
Soft drink figures scale almost exactly with cup size, so the published number tells you what the standard serve holds and nothing about the refill. Sugar free versions sit near zero on energy at every one of these chains, which is the single largest swap available on a drink.
Frequently Asked Questions About McDonald's Diet Coke Small
How much is Diet Coke Small at McDonald's?
What allergens does McDonald's declare in Diet Coke Small?
Is Diet Coke Small available at every McDonald's in the UK?
More McDonald's Menu Items
McDonald's Fries Small
Fluffy on the inside and crispy on the outside, our fries are cut from whole potatoes. That's why they're so delicious.
Chocolate Milkshake Small
Some days just require a chocolate milkshake. Our chocolate milkshake is indulgence in a cup.
Strawberry Milkshake Small
Our deliciously thick strawberry milkshake is a treat whatever the time of day.
Banana Milkshake Small
Our banana milkshake is a firm favourite. It’s sweet and delicious.
Vanilla Milkshake Small
Deliciously thick, vanilla milkshake. Stir it, slurp it, love it.
White Coffee
Take a double shot of our Arabica bean espresso and blend it with organic semi-skimmed milk and hot water. What do you get? A delicious coffee, every time. Optional syrups available with this drink in regular size: Vanilla 150kJ 35kcal, Salted Caramel 156kJ 38kcal.
Americano
Our coffee is made with freshly ground Arabica beans from Rainforest Alliance Certified Farms™ and blended with hot water for a rich taste. Optional syrups available with this drink in regular size: Vanilla 150kJ 35kcal, Salted Caramel 156kJ 38kcal.
Coca-Cola Zero Sugar Small
Zero calories, zero sugar, same great Coca-Cola taste. Perfect with your meal, or as a refreshing drink.
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About McDonald's - Fast Food Restaurant
McDonald's trades as a fast food chain in the UK, and we list 119 of its branches. We track 130 of its menu items across 12 sections, recheck them on a rolling schedule, and name the source of every figure. UK Menu Prices has no connection to McDonald's and earns nothing from your order.
