Flat White: calories and sugar by portion and age

Boone’s analysis puts Burger King Flat White at 5% of an adult’s daily calories and 0.0 teaspoons of free sugar.

How many calories are in a Burger King Flat White? It contains 93 kcal, 3.1g of fat (1.8g saturated) and 8.8g of sugar. Burger King publishes a calorie figure for this item but not the rest of the nutrition row.

Build a full meal with our nutrition calculator

Use the Boone meal calculator to build a full meal rather than view this item on its own. Add a main, fries, dips and a drink, then choose your age and sex for a more accurate view of how a Flat White fits into a day.

Nutrition information

Nutrition information: Burger King Flat White

Energy	93 kcal
Fat	3.1g Boone estimate
of which saturates	1.8g Boone estimate
Carbohydrate	8.8g Boone estimate
of which sugars	8.8g
Salt	Not published
Protein	6.6g

Nutrition figures are Burger King UK published data, per item as sold and before any optional sauces or extras. Boone converts them to the portion and age comparisons on this page. The fields marked above are genuinely absent rather than zero. Figures marked as a Boone estimate are derived from Burger King’s own published rows for semi-skimmed milk and its sundae range, applied to the serve volume. They are estimates, not Burger King data.

Burger King Flat White contains 93 kcal, which is 5% of the 2,000 kcal adult daily reference intake. It provides 3.1g of total fat, of which 1.8g is saturated, 8.8g of sugar, 0g of salt and 6.6g of protein.

The saturated fat content of 1.8g represents 9% of the adult daily guideline of 20g.

Sugar in Burger King Flat White

Burger King Flat White contains 0g of free sugar per standard serving (0.0 teaspoons). The total sugar figure Burger King publishes is 8.8g; the difference is naturally present in milk and does not count towards the limits below. Low sugar

The NHS free sugar limit is 30g per day for adults, 24g for children aged 7 to 10, and 19g for children aged 4 to 6. Free sugar excludes the sugars naturally present in milk and whole fruit.

Free sugar by portion: Burger King Flat White

Portion	Adult (female) 30g	Adult (male) 30g	Age 11 to 17 30g	Age 7 to 10 24g	Age 4 to 6 19g
Per portion	0g 0%	0g 0%	0g 0%	0g 0%	0g 0%

Teaspoons: 0.0 tsp

Boone calculates these percentages from Burger King UK published nutrition data against UK Dietary Reference Values and NHS free sugar and salt limits. Free sugar, salt, calories and saturated fat are limits to stay under. For guidance only.

Calories in Burger King Flat White

Burger King Flat White contains 93 kcal per standard serving. Low calorie share

Daily calorie needs vary by age and sex.

Calories by portion: Burger King Flat White

Portion	Adult (female) 2000 kcal	Adult (male) 2500 kcal	Age 11 to 17 1936 kcal	Age 7 to 10 1553 kcal	Age 4 to 6 1291 kcal
Per portion	93 kcal 5%	93 kcal 4%	93 kcal 5%	93 kcal 6%	93 kcal 7%

Saturated fat in Burger King Flat White

Burger King Flat White contains 1.8g of saturated fat per standard serving. Low saturated fat

The saturated fat guideline is 20g a day for women and 30g for men, and lower for children.

Saturated fat by portion: Burger King Flat White

Portion	Adult (female) 20g	Adult (male) 30g	Age 11 to 17 20g	Age 7 to 10 18g	Age 4 to 6 16g
Per portion	1.8g 9%	1.8g 6%	1.8g 9%	1.8g 10%	1.8g 11%

What Burger King does not publish for this item

Missing data: Burger King Flat White

Burger King publishes a calorie figure for Burger King Flat White but not salt.

UK law requires large chains in England to show calories at the point of choice. The rest of the nutrition panel is voluntary, and Burger King leaves it blank for this item. Boone shows the figures it publishes and marks the rest as absent rather than filling the gap with an estimate or a zero.

The meal calculator on this page flags the same gap, so a total that includes this item is a minimum rather than a complete figure.

Free sugar vs total sugar

Where the sugar comes from: Burger King Flat White

Roughly 0g of the 8.8g counts as free sugar, or about 0.0 teaspoons. The rest is lactose, estimated from the 6.6g of protein. Burger King does not publish the split, so the free figure is Boone’s estimate and is deliberately rounded so it is not understated.

NHS daily free sugar limits: 30g for adults and children 11+, 24g age 7 to 10, 19g age 4 to 6.

Ultra-processed food: what is really in it

Processing: Burger King Flat White

Boone cannot classify this item, because Burger King chooses not to publish an ingredient list for it.

NOVA classification is read from an ingredient list. Without one there is no way to count additives, separate raw ingredients from manufactured ones, or say whether an item is ultra-processed. Boone does not estimate a NOVA group, because a guess presented as a classification would be worse than saying nothing.

Where an item on this menu is a sealed branded product, a bottled soft drink or a tub of ice cream for example, the manufacturer’s own label is used and a NOVA group is given.

Ingredients

Burger King chooses not to publish an ingredient list

Ingredients: Burger King Flat White

Burger King does not publish the ingredients in a Burger King Flat White, and it is under no legal obligation to do so.

Food made to order in a restaurant counts as non-prepacked under UK food law. The legal requirement is to declare the 14 major allergens, and for large businesses in England to show calories at the point of choice. A full ingredient list is voluntary. Some chains publish one anyway. Burger King does not.

This means no page on this site can tell you how many ingredients are in this item, how many of them are manufactured substances, or whether it is ultra-processed. Boone will not estimate any of it. That absence is Burger King’s decision, not an omission on our part.

Burger King is not unusual in this. UK law lets any chain serving food made to order skip ingredient labelling entirely, and the chains that publish do so by choice.

Allergen information for this item is published by Burger King and is shown below. Recipes change, so always check in restaurant before ordering if you have an allergy.

Allergens at a glance

Burger King Flat White contains milk.

Allergen information: Burger King Flat White

Allergen	Status
Wheat	Not present
Rye	Not present
Barley	Not present
Oats	Not present
Sesame	Not present
Soya	Not present
Milk	Contains
Eggs	Not present
Fish	Not present
Crustaceans	Not present
Celery	Not present
Mustard	Not present
Molluscs	Not present
Lupin	Not present

Contains = declared as an ingredient. May contain traces = Burger King states the allergen cannot be excluded. Burger King prepares food in kitchens where equipment is shared, so no item can be guaranteed allergen free. All buns are toasted in the same toaster. Fryers share an oil filtration system. The broiler cooks all beef patties and breakfast sausage patties.

Frequently asked questions

How many calories are in a Burger King Flat White?+

Boone calculates that a Burger King Flat White contains 93 kcal, which is 5% of an adult’s 2,000 kcal daily reference intake and 7% of the daily intake for a child aged 4 to 6.

How much sugar is in a Burger King Flat White?+

Burger King publishes a total sugar figure of 8.8g for a Burger King Flat White, and Boone calculates that around 0g of that is free sugar, or about 0.0 teaspoons. The rest is lactose, which NHS daily sugar limits do not count.

How much saturated fat is in a Burger King Flat White?+

A Burger King Flat White contains 1.8g of saturated fat. Boone calculates this as 9% of the daily guideline for an adult woman and 6% for an adult man, because the guideline differs by sex: 20g and 30g.

Where do the protein and fat figures for a Burger King Flat White come from?+

Burger King does not publish them. Boone derives them from Burger King’s own published rows: its semi-skimmed milk figures and its sundae range, applied to the serve volume. Three independent methods agree to within about a gram, so the estimate is sound, but it is an estimate rather than Burger King data and is labelled as such on this page.

Why is some nutrition information missing for a Burger King Flat White?+

Burger King publishes a calorie figure for a Burger King Flat White but not the full nutrition row. UK law requires large chains in England to show calories; the rest of the panel is voluntary. Boone marks those fields as absent rather than filling them with an estimate or a zero.

Is a Burger King Flat White ultra-processed?+

Burger King does not publish ingredient lists for food made to order, and UK law does not require it to, so Boone cannot assign a NOVA group to this item. Where an item is a sealed branded product, the manufacturer’s own ingredient list is used instead.