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FuelFacts
Restaurant FoodsPlate 1433 of 1799

Calories in
restaurant, family style, onion rings

356 kcal per 100 g Restaurant, family style, onion rings contains 356 calories per 100 grams, or about 922 calories per serving. Per 100 g it provides 4.9 g protein, 40.7 g carbohydrate and 19.3 g fat.

By calories that splits 46% carbohydrate, 5% protein, 49% fat — dissected below.

SOURCE·USDA SR Legacy·FDC 169027·REVIEWED JUL 2026

Energy anatomy — per 100 g Plate 1433 of 1799
46%49% 0 89 178 267 356 kcal
Protein 4.9 g × 4 kcal/g 20 kcal · 5%
Carbohydrate 40.7 g × 4 kcal/g 163 kcal · 46%
Fat 19.3 g × 9 kcal/g 174 kcal · 49%
Shorthand total Atwater 4 · 4 · 9 356 kcal
As published by USDA food-specific factors 356 kcal

The 4·4·9 shorthand adds to 356 kcal and USDA publishes 356 kcal. The arithmetic closes, so the axis above is simply that figure divided by the shares.

SourceUSDA FoodData Central, SR LegacyFDC 169027retrieved 2026-07

Per 100 g356kcal
Per serving922kcal · 259.0 g
Protein4.9g per 100 g
Walk it off188minutes walking
Proteingrams
Carbsgrams
Fatgrams
Walk it offmin at 70 kg

How this is worked out

  1. USDA measures every nutrient per 100 g of edible portion. That row is published here unchanged — nothing is rounded up, smoothed or "adjusted".
  2. The energy figure is USDA's own, derived with food-specific factors. This site never computes the calorie count it publishes.
  3. The Atwater shorthand 4 · 4 · 9 is applied to the protein, carbohydrate and fat grams only to split that energy into shares — and where the shorthand disagrees with the published figure, the gap is printed rather than hidden.
  4. A serving is a straight proportional conversion of the per-100 g row, using USDA's own household measures for the grams.
  5. The walking figure uses MET 4.0 at 70 kg, the same equation the sister site publishes.
per serving   = per 100 g × serving grams ÷ 100
energy shares = 4·P + 4·C + 9·F      (P, C, F in grams)
walk minutes  = kcal ÷ (4.0 × 3.5 × 70 ÷ 200)

Full data & method →

Calories in a typical serving

Per-100 g figures are useful for comparison but nobody eats 100 g of anything on purpose. These are the USDA's own household measures.

ServingGramsCaloriesProteinCarbsFat
1 serving259.0 g 922 12.7 g105.5 g49.9 g

SOURCE·USDA SR Legacy·REVIEWED JUL 2026

Full nutrition, per 100 g and per serving

NutrientPer 100 gPer serving
Energy356 kcal922 kcal
Protein4.9 g12.7 g
Total fat19.3 g49.9 g
Saturated fat3.4 g8.9 g
Carbohydrate40.7 g105.5 g
Fibre2.6 g6.7 g
Sugars4.7 g12.1 g
Sodium692.0 mg1,792.3 mg
Potassium142.0 mg367.8 mg
Calcium21.0 mg54.4 mg
Iron0.7 mg1.8 mg
Vitamin A1.0 µg2.6 µg
Water32.9 g85.2 g

A dash means the nutrient was not measured for this item, which is not the same as zero.

SOURCE·USDA SR Legacy·FDC 169027·REVIEWED JUL 2026

How restaurant, family style, onion rings compares

Among the 27 restaurant foods items on this site, restaurant, family style, onion rings ranks 3 of 27 by calorie density, against a category average of 213 kcal per 100 g — so it is about 67% more calorie-dense than typical for its group.

It carries 1.4 g of protein per 100 calories, so it is not a meaningful protein source.

To burn off one serving (922 kcal), a 70 kg adult would walk for roughly 188 minutes — see the walking calculation on our sister site, or pick a different activity. Treat that as a sense of scale rather than a rule: eating and moving are not a simple ledger.

SOURCE·USDA SR Legacy·REVIEWED JUL 2026

A reference table describes the average restaurant, family style, onion rings. Yours was grown somewhere, picked at some ripeness, and cooked by you.

Questions this entry settles

How many calories are in restaurant, family style, onion rings?

Restaurant, family style, onion rings contains 356 calories per 100 g, which works out to about 922 calories per serving. It also provides 4.9 g of protein, 40.7 g of carbohydrate and 19.3 g of fat per 100 g.

What is the macro breakdown of restaurant, family style, onion rings?

By calories, restaurant, family style, onion rings is roughly 46% carbohydrate, 5% protein and 49% fat. That makes it a predominantly fat-based food.

How long does it take to burn off a serving?

About 188 minutes of ordinary walking for a 70 kg adult (MET 4.0). That is a rough guide for scale, not a prescription — appetite and activity interact in ways a simple subtraction does not capture.

Is this figure exact for the restaurant, family style, onion rings I bought?

No. These are USDA reference values, averaged across samples. Real foods vary with variety, ripeness, growing conditions, cut, brand and how they were cooked — 10–20% either way is normal. Use them for planning, not precision.

Source: USDA FoodData Central, SR Legacy — public domain, reviewed JUL 2026. Full USDA description: "Restaurant, family style, onion rings". General information only — not medical or nutrition advice. Values are averages for a food type and vary by brand, ripeness and preparation.

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Published by

Amit Sharma

Auckland real-estate agent and marketer. Builds free, sourced data tools.