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FuelFacts
Restaurant FoodsPlate 1431 of 1799

Calories in
restaurant, family style, french fries

289 kcal per 100 g Restaurant, family style, french fries contains 289 calories per 100 grams, or about 491 calories per serving. Per 100 g it provides 3.5 g protein, 37.2 g carbohydrate and 14.0 g fat.

By calories that splits 51% carbohydrate, 5% protein, 44% fat — dissected below.

SOURCE·USDA SR Legacy·FDC 169836·REVIEWED JUL 2026

Energy anatomy — per 100 g Plate 1431 of 1799
51%44% 0 72 145 217 289 kcal
Protein 3.5 g × 4 kcal/g 14 kcal · 5%
Carbohydrate 37.2 g × 4 kcal/g 149 kcal · 51%
Fat 14.0 g × 9 kcal/g 126 kcal · 44%
Shorthand total Atwater 4 · 4 · 9 289 kcal
As published by USDA food-specific factors 289 kcal

The 4·4·9 shorthand adds to 289 kcal and USDA publishes 289 kcal. The arithmetic closes, so the axis above is simply that figure divided by the shares.

SourceUSDA FoodData Central, SR LegacyFDC 169836retrieved 2026-07

Per 100 g289kcal
Per serving491kcal · 170.0 g
Protein3.5g per 100 g
Walk it off100minutes 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 serving170.0 g 491 5.9 g63.2 g23.9 g

SOURCE·USDA SR Legacy·REVIEWED JUL 2026

Full nutrition, per 100 g and per serving

NutrientPer 100 gPer serving
Energy289 kcal491 kcal
Protein3.5 g5.9 g
Total fat14.0 g23.9 g
Saturated fat2.5 g4.2 g
Carbohydrate37.2 g63.2 g
Fibre3.9 g6.6 g
Sugars0.3 g0.5 g
Sodium357.0 mg606.9 mg
Potassium545.0 mg926.5 mg
Calcium17.0 mg28.9 mg
Iron0.9 mg1.5 mg
Vitamin C1.1 mg1.9 mg
Vitamin A0.0 µg0.0 µg
Cholesterol1.0 mg1.7 mg
Water43.2 g73.4 g

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

SOURCE·USDA SR Legacy·FDC 169836·REVIEWED JUL 2026

How restaurant, family style, french fries compares

Among the 27 restaurant foods items on this site, restaurant, family style, french fries ranks 7 of 27 by calorie density, against a category average of 213 kcal per 100 g — so it is about 36% more calorie-dense than typical for its group.

It carries 1.2 g of protein per 100 calories, so it is not a meaningful protein source.

To burn off one serving (491 kcal), a 70 kg adult would walk for roughly 100 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, french fries. Yours was grown somewhere, picked at some ripeness, and cooked by you.

Questions this entry settles

How many calories are in restaurant, family style, french fries?

Restaurant, family style, french fries contains 289 calories per 100 g, which works out to about 491 calories per serving. It also provides 3.5 g of protein, 37.2 g of carbohydrate and 14.0 g of fat per 100 g.

What is the macro breakdown of restaurant, family style, french fries?

By calories, restaurant, family style, french fries is roughly 51% carbohydrate, 5% protein and 44% fat. That makes it a predominantly carbohydrate-based food.

How long does it take to burn off a serving?

About 100 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, french fries 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, french fries". 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.