Updated 26 July 2026
Breakfast King

Burger King Breakfast King

A WHOPPER® patty, crispy bacon, fluffy egg, American Cheese in a toasted brioche bun- breakfast doesn’t get much better than this!

Contains: Soya

May contain: Gluten, Wheat, Milk, Egg, Sesame, Celery

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About the Breakfast King

The Burger King Breakfast King costs £6.49 and carries 506 kcal. A WHOPPER® patty, crispy bacon, fluffy egg, American Cheese in a toasted brioche bun. It sits in the breakfast section of the UK menu, alongside 11 other items.

Measured out, one portion holds 34.7g of protein, which is 69 percent of a day's reference intake, 23.6g of fat, 9.9g of it saturated, 1.78g of salt, 30 percent of the 6g daily maximum, 9.9g of sugar. Protein is where it separates itself, and there is not much else on the menu that matches it in one portion.

Weight and calories together put it at about 250 kcal per 100g across a 202g serving. That makes it squarely mid range for this kind of food, meaning what you see is roughly what you get.

Against the rest of the breakfast range it ranks as the most expensive item in the section. That places it near the top of a section spanning £1.79 to £6.49.

On calories it lands 313 kcal above the breakfast average of 193 kcal. The closest thing to it on the whole menu is Ultimate Breakfast Sandwich at 491 kcal, which is a useful swap to know if you want the same sort of number in a different form.

The declared allergens are soya. It may also contain gluten, wheat, milk, egg, sesame, celery through shared preparation, which matters more than the headline list if you are avoiding something strictly. The list is the brand's own, made against the fourteen allergens UK restaurants must declare. It describes the recipe rather than the branch, and branches differ.

To round the order out, Americano at £1.99 and Sausage Butty at £3.29 sit in the same section and are the obvious companions. The full menu price list shows what the whole order comes to, and the calorie calculator totals the nutrition as you add items.

Burger King Breakfast King Nutrition

Energy
506 kcal
Fat
23.6g
Saturates
9.9g
Carbohydrate
37.4g
Sugars
9.9g
Fibre
2.6g
Protein
34.7g
Salt
1.78g
Weight
202g

Values are approximate and come from Burger King UK published nutrition data. Updated 26 July 2026. Report an error.

How to Make a Breakfast King at Home

The Breakfast King is a fifteen minute job at home. The only real technique in it is the egg, and even that is just a ring and a lid.

Prep5 min
Cook12 min
Total17 min
DifficultyEasy

Ingredients

4 servings

Method

0 of 5 steps

Tips

  • Have everything ready before the egg goes in. It is the fastest thing in the pan and the first to spoil.
  • Put the cheese on the hot side of the filling, not against the bun, or it never melts.
  • These reheat badly. Make them to order rather than in a batch.
  • The shop version comes in at 202g and 506 kcal a portion, which is a more useful target than any measurement by eye.

Variations

  • Add a hash brown inside the bun for the version most people build at the counter anyway.
  • Swap in a plant based sausage patty and skip the egg for a vegan build.
  • Use a muffin instead of a brioche bun for something less sweet.

A hash brown on the side and a black coffee. Anything richer competes with the sandwich.

More from the Breakfast Menu

Sausage Butty

A savoury sausage patty between a toasted brioche bun served with your choice of ketchup or brown sauce.

Calories
329
Protein
16.3g
Carbs
37.6g
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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.

Calories
491
Protein
31.3g
Carbs
39.4g
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Comparing the Breakfast King Against the Rest of the Menu?

Every Burger King UK item with its price and calorie count, sortable in one view.

browse every Burger King item

Breakfast King Questions

A Breakfast King costs £6.49 at a standard Burger King restaurant in the UK. Motorway service station, airport and railway station branches charge more, and ordering through Deliveroo, Uber Eats or Just Eat costs more again before any delivery fee.

The Breakfast King contains 506 kcal, which is 25 percent of a 2,000 kcal day. UK guidance sets the adult average at 2,000 kcal for women and 2,500 for men, so judge it against the whole day rather than the meal.

It contains soya. It may also contain gluten, wheat, milk, egg, sesame, celery through shared preparation. This comes from Burger King UK published allergen data, which covers the fourteen allergens UK law requires. Confirm at the counter for anything serious, since kitchen practice varies by branch.

It carries 1.78g of salt. UK guidance sets the adult limit at 6g a day, so this is 30 percent of the daily maximum from one item. Fries and a dip on the side will push the figure up again before the meal is finished.

Most people pair it with fries and a drink. From the same section, Sausage Butty and Ultimate Breakfast Sandwich are worth a look. Prices and calories for everything that goes beside it are on the sides menu.

Not necessarily. Individual restaurants drop items when they sell out, and promotional items disappear once the run ends. The Burger King app shows the live menu once you select a restaurant, which is the only reliable way to check before travelling. The store locator lists every UK branch.

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