Breakfast King
£5.49*
506 kcal
34.699g protein
Updated 12 September 2026 · price from a third party listing
Breakfast King carries more protein than anything else in Burger King’s Breakfast section, at 34.699g for 506 kcal. Updated 12 September 2026.
A WHOPPER® patty, crispy bacon, fluffy egg, American Cheese in a toasted brioche bun- breakfast doesn’t get much better than this!
The £5.49 figure came from a third party listing rather than from Burger King, 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 Burger King declares
Shared kitchens mean cross-contamination is possible. Ask in the restaurant if an allergy is severe.
Nutrition Information
Per 202g portion
As published by Burger King
| Nutrient | Amount | % RI (calculated) |
|---|---|---|
| Energy | 506 kcal | 25% |
| Fat | 23.649g | 34% |
| of which saturates | 9.85g | 49% |
| Carbohydrate | 37.38g | 14% |
| of which sugars | 9.91g | 11% |
| Fibre | 2.58g | — |
| Protein | 34.699g | 69% |
| Salt | 1.78g | 30% |
% RI is our calculation against the UK reference intake for an average adult: 2,000 kcal, 70g fat, 20g saturates, 260g carbohydrate, 90g sugars, 50g protein and 6g salt. Burger King publishes the amounts, not these percentages.
Everything You Need to Know About Burger King Breakfast King
How to order Breakfast King at Burger King
Breakfast King is available at the till, on the kiosk screens and through the Burger King app, for collection or for delivery. It is filed under Breakfast. Branch by branch availability varies, which the app reflects once you choose a location.
Burger King Breakfast King price in 2026
The Burger King Breakfast King price in 2026 is £5.49 on the figures we hold. The figure came from a third party listing rather than from Burger King, so read it as a ceiling. Expect more at airport, motorway and station branches than on a high street, and more again through a delivery app.
Allergens declared
Burger King declares 7 of the 14 allergens UK law requires to be listed for this item: celery, cereals containing gluten, eggs, milk, mustard, sesame and soya. 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.
What 506 kcal means here
506 kcal is well above the Breakfast average. That is a full meal's worth on its own, before anything else goes on the tray. The 2,000 kcal figure printed on UK menus is a reference intake for an average adult, not a target, and it is the number these percentages are worked against.
Protein for the calories
It gives 6.9g of protein per 100 kcal, against a menu average of 3.7g across everything we hold for Burger King. That is a strong ratio for this menu, which matters more than the raw protein figure when you are comparing two items of different sizes. On raw protein it ranks 1st of 7 in its section.
Salt worth knowing about
At 1.78g of salt it accounts for 30% of the 6g daily maximum the NHS recommends for adults, a noticeable share of a day in one item. Salt in restaurant food is fixed in the recipe, so the only control you have is what else goes alongside it.
Pro Tips for Ordering Breakfast King
Breakfast timing
Breakfast items come off the menu at a set time, which varies by branch rather than nationally. The only way to be sure is to get there before the changeover, and the app shows the current menu for the branch you have selected.
Finding it near you
We list 584 Burger King branches across 4 of the four UK nations, with the Northern Ireland postcode area holding the most at 25. Menus vary by site, so a listing here is national rather than a promise about your nearest one. The Burger King app confirms it in seconds.
A lighter choice in the same section
Bacon and Egg Sandwich sits in the same part of the menu at 362 kcal, which is 144 fewer than this. That swap is the single biggest change available inside this section, and it needs no substitution or special request at the counter.
Frequently Asked Questions About Burger King Breakfast King
How much is Breakfast King at Burger King?
How many calories are in Breakfast King?
What is a lighter alternative to Breakfast King?
Is Breakfast King a good source of protein?
What allergens does Burger King declare in Breakfast King?
Is Breakfast King available at every Burger King in the UK?
More Burger King Menu Items
Sausage Butty
A savoury sausage patty between a toasted brioche bun served with your choice of ketchup or brown sauce.
Ultimate Breakfast sandwich
A true breakfast favourite. A sausage patty, crispy bacon and fluffy egg altogether in a brioche bun. Served with your choice of ketchup or brown sauce.
Bacon and Egg Sandwich
Crispy Bacon and a fluffy egg sandwiched between a toasted brioche bun. Served with your choice of ketchup or brown sauce.
Sausage and Egg sandwich
A sausage patty and a fluffy egg sandwiched between a toasted brioche bun. Served with your choice of ketchup or brown sauce.
Hash Browns
Make your morning sizzle with a side of our signature crunchy, golden Hash Browns.
Cappuccino
Made with our new Arabica Coffee beans.
Americano
Made with our new Arabica Coffee beans.
Espresso
Made with our new Arabica Coffee beans.
Popular Items at Other Restaurants
McDonald's
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£4.79 · 509 kcal
KFC
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£7.09 · 604 kcal
Subway
Big Breakwich (6-inch)
£4.99 · 599 kcal
Greggs
Bacon Breakfast Roll
£2.40 · 321 kcal
Costa Coffee
Maple Hazel Latte
£5.60 · 315 kcal
Starbucks
Iced Apple Crumble Matcha Latte
£6.80 · 328 kcal
Nando's
Halloumi Sticks & Chilli Jam
£4.95 · 458 kcal
Wagamama
chicken katsu curry
£14.50 · 988 kcal
About Burger King - Fast Food Restaurant
Burger King trades as a fast food chain in the UK, and we list 584 of its branches. We track 207 of its menu items across 10 sections, recheck them on a rolling schedule, and name the source of every figure. UK Menu Prices has no connection to Burger King and earns nothing from your order.
