6 piece (medium) of Onion Rings (85 g) has 298 calories. That works out to 350 calories per 100 g. It contains 33.2 g of carbs, 2.7 g of protein, 17 g of fat and 1.8 g of fiber. Its 357 mg of Sodium covers 16% of the Daily Value. Its glycemic index is 70 (high), so it raises blood sugar quickly.

What is Onion Rings?

Onion rings are slices of onion coated in batter, often with crumbs for extra crunch, then deep-fried. They are closely associated with American diners and fast-food restaurants, though versions are enjoyed in many places. A good ring has a crisp, golden coating around a tender, mildly sweet onion centre.

They’re commonly served hot as a burger side or pub snack, with ketchup or a creamy dip; they also work well for sharing at home. Their energy comes mostly from the coating and frying oil, while protein is modest. For a lighter take, bake or air-fry them and serve with a tangy yoghurt dip.

Onion Rings Nutrition Facts

Selected: 100 g

350

KCAL / 100G

Carbs

39g

· 14% DV

Protein

3.2g

· 6% DV

Fat

20g

· 26% DV

Fiber

2.1g

· 8% DV

DV is the share of the daily value covered, on a 2,000 kcal reference diet.

Calories come from: Carbs 45% · Protein 4% · Fat 51%

Onion Rings Vitamins & Minerals

Vitamins

Vitamin K

12µg · 10% DV

0.09mg · 8% DV

Vitamin E

1.1mg · 7% DV

0.08mg · 5% DV

Minerals

Sodium

420mg · 18% DV

Phosphorus

55mg · 8% DV

Iron

1mg · 6% DV

Selenium

2.5µg · 5% DV

How Nutritious Is Onion Rings?

Nutrient density

Low

18/ 100

How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.

Satiety score

Low

20/ 100

An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.

Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.

Onion Rings Glycemic Index

GLYCEMIC INDEX

High

0 Low5570100

GLYCEMIC LOAD

High

Accounts for portion size — a more realistic measure than GI alone.

How to Burn Off Onion Rings

To burn the 350 calories in 100 g:

🚶

87min

Walking (5 km/h)

🏃

36min

Running (8 km/h)

🚴

48min

Cycling

🏊

41min

Swimming

Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.

Is Onion Rings Processed?

NOVA 3

Processed

1. Unprocessed

2. Minimally Processed

3. Processed

4. Ultra-Processed

NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.

Does Onion Rings Contain Allergens?

Contains these allergens:

Gluten yes

Dairy free

Eggs yes

Peanuts free

Tree nuts free

Fish free

Soy free

Sesame free

Which Diets Is Onion Rings Good For?

Vegan

— Not suitable

Vegetarian

✓ Suitable

Gluten-Free

— Not suitable

Dairy-Free

— Not suitable

Mediterranean

— Not suitable

Paleo

— Not suitable

Whole30

— Not suitable

DASH

— Not suitable

Keto

— Not suitable

Low FODMAP

— Not suitable

Onion Rings Fat Profile

SATURATED

3.5g

MONOUNSATURATED

7.2g

POLYUNSATURATED

7.8g

⚖️

Omega 6:3 ratio 53.3:1

Above the ideal 4:1 (53.3:1).

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Frequently Asked Questions About Onion Rings

How do you make onion rings at home?

To make onion rings, slice onions into thick rounds, separate the rings, and coat them in flour, egg batter, and breadcrumbs. Fry in hot oil in small batches until golden, then drain on a rack or paper towels.

How do you get onion rings extra crispy?

For extra-crispy onion rings, keep the coating cold before frying and cook a few rings at a time in properly hot oil. Crowding the pan lowers the oil temperature, making the coating absorb more oil and turn soggy.

Why does the coating fall off onion rings?

The coating often slips off onion rings when the onion is wet or slippery, or when the flour layer is skipped. Pat the rings dry, dust them lightly with flour before dipping, and let excess batter drip off.

What kind of onion is best for onion rings?

Large yellow or sweet onions work well for onion rings because they make broad, substantial rounds with a mild flavor. Cut the onion crosswise into even slices so the rings cook at about the same rate.

Can you cook onion rings in an air fryer?

Yes, onion rings cook well in an air fryer, especially when arranged in a single layer with a light coating of oil. Turn them halfway through and follow the appliance or package directions, since fresh and frozen rings cook differently.

What is the difference between battered and breaded onion rings?

Battered onion rings have a wet coating that fries into a smoother, puffier shell; breaded rings are rolled in crumbs for a rougher, crunchier crust. The coating style also affects how well the rings stay crisp after cooking.

What dipping sauce goes best with onion rings?

Onion rings pair well with ketchup, ranch, barbecue sauce, or a tangy mayonnaise-based dip. A sharp or slightly spicy sauce balances the onion’s sweetness and the rich fried coating.

Can you bake onion rings instead of frying them?

Yes, you can bake onion rings, though they usually come out less crisp than deep-fried ones. Arrange them with space between each ring on a hot, lined baking sheet, lightly oil the coating, and turn them once as they bake.

Can you freeze homemade onion rings?

Yes, freeze coated, uncooked onion rings in a single layer until firm, then transfer them to a sealed freezer bag. Cook them from frozen in an oven or air fryer so the coating is less likely to turn soggy.

How do you reheat leftover onion rings without making them soggy?

Reheat leftover onion rings in an oven or air fryer to bring back some crunch. Spread them out rather than stacking them; a microwave heats them quickly but tends to soften the coating.

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Nutrition data compiled from USDA FoodData Central and scientific sources.

· Last updated: September 24, 2026