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FuelFacts
Pork ProductsPlate 1332 of 1799

Calories in
pork, fresh, belly

518 kcal per 100 g Pork, fresh, belly contains 518 calories per 100 grams, or about 585 calories per 4 oz. Per 100 g it provides 9.3 g protein, 0.0 g carbohydrate and 53.0 g fat.

By calories that splits 0% carbohydrate, 7% protein, 93% fat — dissected below.

SOURCE·USDA SR Legacy·FDC 167812·REVIEWED JUL 2026

Energy anatomy — per 100 g Plate 1332 of 1799
93% 0 130 259 389 518 kcal
Protein 9.3 g × 4 kcal/g 37 kcal · 7%
Fat 53.0 g × 9 kcal/g 477 kcal · 93%
Shorthand total Atwater 4 · 4 · 9 514 kcal
As published by USDA food-specific factors 518 kcal

The 4·4·9 shorthand adds to 514 kcal; USDA publishes 518 kcal−4 kcal, 0.8% apart. That gap is expected, not an error: USDA derives energy with food-specific factors and, for many items, discounts the fibre that the shorthand still counts at four. The published figure is the better one, so the axis above is scaled to it and the shares are what the shorthand is genuinely good at.

SourceUSDA FoodData Central, SR LegacyFDC 167812retrieved 2026-07

Per 100 g518kcal
Per 4 oz585kcal · 113.0 g
Protein9.3g per 100 g
Walk it off119minutes 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
4 oz113.0 g 585 10.6 g0.0 g59.9 g
1 lb453.6 g 2,350 42.4 g0.0 g240.5 g

SOURCE·USDA SR Legacy·REVIEWED JUL 2026

Full nutrition, per 100 g and per 4 oz

NutrientPer 100 gPer 4 oz
Energy518 kcal585 kcal
Protein9.3 g10.6 g
Total fat53.0 g59.9 g
Saturated fat19.3 g21.8 g
Carbohydrate0.0 g0.0 g
Fibre0.0 g0.0 g
Sugars0.0 g0.0 g
Sodium32.0 mg36.2 mg
Potassium185.0 mg209.1 mg
Calcium5.0 mg5.7 mg
Iron0.5 mg0.6 mg
Vitamin C0.3 mg0.3 mg
Vitamin A3.0 µg3.4 µg
Cholesterol72.0 mg81.4 mg
Water36.7 g41.5 g

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

SOURCE·USDA SR Legacy·FDC 167812·REVIEWED JUL 2026

How pork, fresh, belly compares

Among the 83 pork products items on this site, pork, fresh, belly ranks 13 of 83 by calorie density, against a category average of 290 kcal per 100 g — so it is about 79% more calorie-dense than typical for its group.

It carries 1.8 g of protein per 100 calories, so it is not a meaningful protein source.

To burn off 4 oz (585 kcal), a 70 kg adult would walk for roughly 119 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 pork, fresh, belly. Yours was grown somewhere, picked at some ripeness, and cooked by you.

Questions this entry settles

How many calories are in pork, fresh, belly?

Pork, fresh, belly contains 518 calories per 100 g, which works out to about 585 calories per 4 oz. It also provides 9.3 g of protein, 0.0 g of carbohydrate and 53.0 g of fat per 100 g.

What is the macro breakdown of pork, fresh, belly?

By calories, pork, fresh, belly is roughly 0% carbohydrate, 7% protein and 93% fat. That makes it a predominantly fat-based food.

How long does it take to burn off 4 oz?

About 119 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 pork, fresh, belly 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: "Pork, fresh, belly, raw". 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.