Part of the data ring
FuelFacts
Vegetables and Vegetable ProductsPlate 1657 of 1799

Calories in
sweet potato, canned, vacuum pack

91 kcal per 100 g Sweet potato, canned, vacuum pack contains 91 calories per 100 grams, or about 232 calories per cup, mashed. Per 100 g it provides 1.7 g protein, 21.1 g carbohydrate and 0.2 g fat.

By calories that splits 91% carbohydrate, 7% protein, 2% fat — dissected below.

SOURCE·USDA SR Legacy·FDC 168485·REVIEWED JUL 2026

Energy anatomy — per 100 g Plate 1657 of 1799
91% 0 23 46 68 91 kcal
Protein 1.7 g × 4 kcal/g 7 kcal · 7%
Carbohydrate 21.1 g × 4 kcal/g 84 kcal · 91%
Fat 0.2 g × 9 kcal/g 2 kcal · 2%
Shorthand total Atwater 4 · 4 · 9 93 kcal
As published by USDA food-specific factors 91 kcal

The 4·4·9 shorthand adds to 93 kcal and USDA publishes 91 kcal. The arithmetic closes, so the axis above is simply that figure divided by the shares.

SourceUSDA FoodData Central, SR LegacyFDC 168485retrieved 2026-07

Per 100 g91kcal
Per cup, mashed232kcal · 255.0 g
Protein1.7g per 100 g
Walk it off47minutes 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 cup, mashed255.0 g 232 4.2 g53.9 g0.5 g
1 cup pieces200.0 g 182 3.3 g42.2 g0.4 g

SOURCE·USDA SR Legacy·REVIEWED JUL 2026

Full nutrition, per 100 g and per cup, mashed

NutrientPer 100 gPer cup, mashed
Energy91 kcal232 kcal
Protein1.7 g4.2 g
Total fat0.2 g0.5 g
Saturated fat0.0 g0.1 g
Carbohydrate21.1 g53.9 g
Fibre1.8 g4.6 g
Sugars5.0 g12.8 g
Sodium53.0 mg135.2 mg
Potassium312.0 mg795.6 mg
Calcium22.0 mg56.1 mg
Iron0.9 mg2.3 mg
Vitamin C26.4 mg67.3 mg
Vitamin A399.0 µg1,017.5 µg
Cholesterol0.0 mg0.0 mg
Water76.0 g193.9 g

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

SOURCE·USDA SR Legacy·FDC 168485·REVIEWED JUL 2026

How sweet potato, canned, vacuum pack compares

Among the 209 vegetables and vegetable products items on this site, sweet potato, canned, vacuum pack ranks 45 of 209 by calorie density, against a category average of 62 kcal per 100 g — so it is about 47% 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 one cup, mashed (232 kcal), a 70 kg adult would walk for roughly 47 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 sweet potato, canned, vacuum pack. Yours was grown somewhere, picked at some ripeness, and cooked by you.

Questions this entry settles

How many calories are in sweet potato, canned, vacuum pack?

Sweet potato, canned, vacuum pack contains 91 calories per 100 g, which works out to about 232 calories per cup, mashed. It also provides 1.7 g of protein, 21.1 g of carbohydrate and 0.2 g of fat per 100 g.

What is the macro breakdown of sweet potato, canned, vacuum pack?

By calories, sweet potato, canned, vacuum pack is roughly 91% carbohydrate, 7% protein and 2% fat. That makes it a predominantly carbohydrate-based food.

How long does it take to burn off a cup, mashed?

About 47 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 sweet potato, canned, vacuum pack 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: "Sweet potato, canned, vacuum pack". 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.