20 Onion Rings
£6.89–£7.99*
749 kcal
15g protein
Updated 12 September 2026 · price from a third party listing

20 Onion Rings sits 22nd of 38 on price in Burger King’s Menu section, at £6.89–£7.99 and 749 kcal. Updated 12 September 2026.
Classic golden onion rings. *Product is cooked in the same oil as chicken and fish.
The £6.89–£7.99 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 300g portion
As published by Burger King · 3135 kJ
| Nutrient | Amount | % RI (calculated) |
|---|---|---|
| Energy | 749 kcal | 37% |
| Fat | 33g | 47% |
| of which saturates | 7.2g | 36% |
| Carbohydrate | 93g | 36% |
| of which sugars | 0.7g | 1% |
| Fibre | 11g | — |
| Protein | 15g | 30% |
| Salt | 1.3g | 22% |
% 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 20 Onion Rings
How to order 20 Onion Rings at Burger King
You can order 20 Onion Rings at the counter, at a Burger King kiosk, or in the Burger King app for collection or delivery. Not every branch stocks it, and the app is honest about that before you pay.
Burger King 20 Onion Rings price in 2026
The Burger King 20 Onion Rings price in 2026 is £6.89–£7.99 on the figures we hold, with branch to branch variation between £6.89 and £7.99. The figure came from a third party listing rather than from Burger King, so read it as a ceiling. Within the Menu section that puts it 22nd of 38 on price. Expect more at airport, motorway and station branches than on a high street, and more again through a delivery app.
Protein for the calories
It gives 2.0g of protein per 100 kcal, against a menu average of 3.7g across everything we hold for Burger King. That is a weak 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 58th of 134 in its section.
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.
Allergens declared
Burger King declares 6 of the 14 allergens UK law requires to be listed for this item: celery, cereals containing gluten, eggs, milk, mustard 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.
A lighter choice in the same section
Triple Stacker sits in the same part of the menu at 629 kcal, which is 120 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.
Pro Tips for Ordering 20 Onion Rings
The side is where a meal grows
Sides are priced low enough to feel incidental and carry enough energy to change a meal's total. The smaller size, or one shared between two people, keeps the main choice intact. Burger King lists sides separately from meals for exactly this reason.
Salt worth knowing about
At 1.3g of salt it accounts for 22% 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.
What 749 kcal means here
749 kcal is well above the Menu 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.
Frequently Asked Questions About Burger King 20 Onion Rings
How much is 20 Onion Rings at Burger King?
How many calories are in 20 Onion Rings?
What is a lighter alternative to 20 Onion Rings?
Is 20 Onion Rings a good source of protein?
What allergens does Burger King declare in 20 Onion Rings?
Is 20 Onion Rings available at every Burger King in the UK?
More Burger King Menu Items

fsLarge Fanta Zero

Double Chicken Royale Bacon & Cheese
Two golden crispy Chicken Royale patties in a toasted long sesame bun with lettuce, creamy mayo, melted cheese and crispy bacon.

Double WHOPPER
Two flame-grilled beef patties topped with juicy tomatoes, fresh cut lettuce, mayo, pickles, white onions and a swirl of ketchup on a soft sesame seed bun.

Grogu's Sundae
Fusion Vanilla soft-serve topped with a delicious mint chocolate sauce and a sprinkle of chocolate caramel biscuit crumbs.

Mandalorian Double WHOPPER
Two juicy, flame-grilled beef patties topped with melted cheese, tomatoes, fresh lettuce, mayo, pickles, sliced onions, and a delicious limited-time green pickle ketchup, served in a soft, glazed sesame seed bun.

Mandalorian Plant-Based Double Whopper
Two flame-grilled plant-based patties, topped with tomatoes, fresh lettuce, mayo, pickles, sliced onions, and a delicious limited-time green pickle ketchup, served in a soft, glazed sesame seed bun. *Plant-based WHOPPER® is plant-based, however it is cooked on the same broiler as our beef WHOPPER® to deliver the same unique flame-grilled taste.

fsDiet Coca-Cola

Plant-based Bakon King Double
Two juicy flame-grilled Plant-based WHOPPER® patties in a soft sesame bun, layered with four slices of smooth vegan Cheeeze and crispy vegan bakon, topped with egg-free mayo and ketchup. It’s big, plant-based flavour. *Plant-based Bakon King is plant-based, however it is cooked on the same broiler as our WHOPPER® to deliver the same unique flame-grilled taste.
Popular Items at Other Restaurants
McDonald's
Big Mac
£4.79 · 509 kcal
KFC
FILLET TOWER BURGER
£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.
