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Low Calorie Burger King Menu UK (November 2026)

📅 Updated ✍️ AllRestaurantMenu Editorial Team

The low calorie end of the Burger King UK menu is mostly sides, desserts and nuggets: 6 nuggets have 255 kcal and 6 onion rings 225. The lowest calorie burger with published figures is the Bacon Double Cheeseburger at 440 kcal. Every item with 400 calories or less is listed below with its price.

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Building a low calorie meal

A Bacon Double Cheeseburger with 6 onion rings and a Coke Zero comes to 667 kcal — fewer calories than a Whopper with large fries (972 kcal) before you even add a drink. Swapping full-sugar Coca-Cola (190 kcal) for a zero-sugar drink is the easiest calorie saving.

Lowest calorie burgers

Among burgers and chicken burgers with published calories, these are the lightest:

  1. Bacon Double Cheeseburger — 440 kcal, £6.89
  2. Plant-based Whopper — 528 kcal, £7.89
  3. Vegan Royale — 557 kcal, £7.89
  4. Chicken Royale — 568 kcal, £7.89

Leaving out the mayo or cheese cuts more calories; the calorie calculator adds up a whole order.

Low Calorie items with prices

Median delivery-menu prices across 56 UK locations (15 October 2026), before delivery and service fees — usually a little more than at the counter. kcal from Burger King UK.
Menu itemTypical pricePrice rangekcal
Chocolate Sundae£2.79£2.79 – £3.49184
Smarties Fusion£2.99£2.99 – £3.99199
Twix Fusion£3.49£3.49 – £3.99210
6 Onion Rings£4.19£4.19 – £5.09225
6 Chicken Nuggets£6.39£5.49 – £6.99255
Mango & Passionfruit Cheesecake Bar£3.29£3.29 – £3.79264
Strawberry Milkshake Cheesecake Bar£3.29£3.29 – £3.89284
Gooey Salted Caramel Cheesecake Bar£3.29£3.29 – £3.79285
Chocolate Brownie Cheesecake Bar£3.29£2.99 – £3.79294
6 Chilli Cheese Bites£5.69£4.99 – £8.99318
Large Fries£3.49£2.99 – £4.49377

Nutrition

Source: Burger King UK nutrition information for the standard recipe. Customisations change these values.
ItemCalories (kcal)ProteinFatCarbsSalt
Chocolate Sundae1843.5 g5 g31 g0.16 g
Smarties Fusion1993.9 g6.7 g31 g0.18 g
Twix Fusion2103.6 g5.4 g36.6 g0.3 g
6 Onion Rings2254.6 g9.8 g28 g0.38 g
6 Chicken Nuggets25514 g14 g18 g1.4 g
Mango & Passionfruit Cheesecake Bar2643.3 g13.6 g32.3 g0.2 g
Strawberry Milkshake Cheesecake Bar2844 g16 g31.7 g0.2 g
Gooey Salted Caramel Cheesecake Bar2854.8 g8.7 g34.2 g0.4 g
Chocolate Brownie Cheesecake Bar2944.5 g15 g35.2 g0.1 g
6 Chilli Cheese Bites31810 g17 g31 g2 g
Large Fries3774.9 g16 g49 g0.71 g

Meals under 600 kcal

A light main with a low-calorie side, sorted by protein so you still feel full. Add water, a zero-sugar drink, tea or black coffee.

MealKcalProteinPrice

Easy swaps that save kcal

SwapYou save
Coca-Cola → Coca-Cola Zero−188 kcal
Coca-Cola → Diet Coke−189 kcal

Filter the whole menu

Need to avoid specific allergens or combine conditions (for example vegan and under 500 kcal)? Use the interactive allergen & diet filter. Other guides: High Protein · Gluten-Free.

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Frequently asked questions

What is the lowest calorie burger at Burger King UK?

Of the burgers with published nutrition, the Bacon Double Cheeseburger (440 kcal). The Plant-based Whopper has 528 and the Whopper 595.

How many calories are in 6 nuggets?

255 kcal, before the dip.

Which side has the fewest calories?

6 onion rings (225 kcal), against 377 kcal for large fries.

Which drinks are low calorie?

Coke Zero (2 kcal), Diet Coke (1) and Sprite Zero (4). Coca-Cola has 190 kcal.

Is the Chicken Royale low calorie?

Not really: 568 kcal, close to a Whopper (595). Six nuggets have less than half that.

Is there a low calorie dessert?

The Chocolate Sundae has 184 kcal, the lightest dessert with published figures.

AllRestaurantMenu Editorial Team

We record menu prices from live restaurant listings in each country we cover and pair them with official nutrition data, so you can compare before you order. Spotted a price that changed? Tell us — read how we check prices.