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FuelFacts
Breakfast CerealsPlate 0524 of 1799

Calories in
cereals ready-to-eat, ralston crispy hexagons

379 kcal per 100 g Cereals ready-to-eat, RALSTON Crispy Hexagons contains 379 calories per 100 grams, or about 110 calories per cup. Per 100 g it provides 5.9 g protein, 86.8 g carbohydrate and 1.0 g fat.

By calories that splits 91% carbohydrate, 6% protein, 2% fat — dissected below.

SOURCE·USDA SR Legacy·FDC 174649·REVIEWED JUL 2026

Energy anatomy — per 100 g Plate 0524 of 1799
92% 0 95 190 284 379 kcal
Protein 5.9 g × 4 kcal/g 24 kcal · 6%
Carbohydrate 86.8 g × 4 kcal/g 347 kcal · 92%
Fat 1.0 g × 9 kcal/g 9 kcal · 2%
Shorthand total Atwater 4 · 4 · 9 379 kcal
As published by USDA food-specific factors 379 kcal

The 4·4·9 shorthand adds to 379 kcal and USDA publishes 379 kcal. The arithmetic closes, so the axis above is simply that figure divided by the shares.

SourceUSDA FoodData Central, SR LegacyFDC 174649retrieved 2026-07

Per 100 g379kcal
Per cup110kcal · 29.0 g
Protein5.9g per 100 g
Walk it off22minutes 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 cup29.0 g 110 1.7 g25.2 g0.3 g

SOURCE·USDA SR Legacy·REVIEWED JUL 2026

Full nutrition, per 100 g and per cup

NutrientPer 100 gPer cup
Energy379 kcal110 kcal
Protein5.9 g1.7 g
Total fat1.0 g0.3 g
Saturated fat0.3 g0.1 g
Carbohydrate86.8 g25.2 g
Fibre1.5 g0.4 g
Sugars13.8 g4.0 g
Sodium517.0 mg149.9 mg
Potassium224.0 mg65.0 mg
Calcium8.0 mg2.3 mg
Iron27.9 mg8.1 mg
Vitamin C20.7 mg6.0 mg
Vitamin A1,256.0 µg364.2 µg
Cholesterol0.0 mg0.0 mg
Water4.1 g1.2 g

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

SOURCE·USDA SR Legacy·FDC 174649·REVIEWED JUL 2026

How cereals ready-to-eat, ralston crispy hexagons compares

Among the 48 breakfast cereals items on this site, cereals ready-to-eat, ralston crispy hexagons ranks 31 of 48 by calorie density, against a category average of 376 kcal per 100 g — so it is about 1% more calorie-dense than typical for its group.

It carries 1.6 g of protein per 100 calories, so it is not a meaningful protein source.

To burn off one cup (110 kcal), a 70 kg adult would walk for roughly 22 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 cereals ready-to-eat, ralston crispy hexagons. Yours was grown somewhere, picked at some ripeness, and cooked by you.

Questions this entry settles

How many calories are in cereals ready-to-eat, ralston crispy hexagons?

Cereals ready-to-eat, RALSTON Crispy Hexagons contains 379 calories per 100 g, which works out to about 110 calories per cup. It also provides 5.9 g of protein, 86.8 g of carbohydrate and 1.0 g of fat per 100 g.

What is the macro breakdown of cereals ready-to-eat, ralston crispy hexagons?

By calories, cereals ready-to-eat, ralston crispy hexagons is roughly 91% carbohydrate, 6% protein and 2% fat. That makes it a predominantly carbohydrate-based food.

How long does it take to burn off a cup?

About 22 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 cereals ready-to-eat, ralston crispy hexagons 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: "Cereals ready-to-eat, RALSTON Crispy Hexagons". 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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Amit Sharma

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