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How Many Calories in Cornstarch?

✓ Nutrition data reviewed against USDA FoodData Central and Public Health England guidance by Jordan Morley, Editorial Reviewer. Last reviewed: 27 October 2026.

Fact-checked against original USDA source data by Jordan Morley, Editorial Reviewer. Not a registered dietitian — nutrition figures are sourced directly from USDA FoodData Central, not independently assessed medical advice.

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381
calories per 100g
488 calories per 1 cup (128g)
0.3gProtein
91.3gCarbs
0.1gFat
0.9gFibre

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⚖ Kitchen Scales

Quick reference — common serving sizes

AmountCaloriesProtein
1 oz (28g)108 kcal0.1g
100g381 kcal0.3g
1 cup488 kcal0.4g
grams
381kcal
0.3gprotein
91.3gcarbs
0.1gfat
0.9gfibre

A cornstarch contains 381 calories per 100g. A typical 1 cup (128g) provides about 488 calories. Cornstarch is high in calories. Accurate tracking starts with weighing portions — a digital kitchen scale removes all the guesswork.

Cornstarch Nutrition Facts

NutrientPer 100gPer serving (128g)
Calories381 kcal488 kcal
Protein0.3g0.4g
Carbohydrates91.3g116.9g
of which Sugars0.0g0.0g
Fat0.1g0.1g
of which Saturates0.0g0.0g
Fibre0.9g1.2g
Sodium9.0mg12mg
Potassium3.0mg4mg
Calcium2.0mg3mg
Iron0.5mg0.6mg
Vitamin C0.0mg0.0mg
Vitamin A0.0µg0µg
Selenium2.8µg4µg
Riboflavin (B2)0.0mg0.0mg

% of Daily Value (per 100g)

Based on a standard 2,000-calorie reference diet — the same basis used on nutrition labels in the US and UK.

Useful for tracking cornstarch

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Have a cat or dog? Check whether cornstarch is safe for your dog or safe for your cat before sharing. Also check the full ingredient breakdown and food safety guide for pregnancy and storage advice. Use a meal prep container set to portion out cornstarch for the week. Tracking supplements too? Check drug and supplement interactions before combining anything new.

Good to know

Check the actual serving size on packaging before comparing to the per-100g figures here — snack portions are often smaller (or larger) than 100g.

Frequently Asked Questions

How many calories in cornstarch per 100g?

Cornstarch contains 381 calories per 100g, based on USDA reference data.

Is cornstarch high in calories?

A 1 cup of cornstarch (128g) has around 488 calories — roughly 24% of a 2,000-calorie daily intake.

Is cornstarch good for weight loss?

Cornstarch is fairly calorie-dense at 381 calories per 100g, so portion size matters when losing weight. A 1 cup provides about 488 calories.

How much protein is in cornstarch?

Cornstarch contains 0.3g of protein per 100g.

Is cornstarch a good source of fibre?

Cornstarch is relatively low in fibre at 0.9g per 100g, so pairing it with fibre-rich sides (vegetables, whole grains, legumes) can help balance a meal.

How does cornstarch compare to gravy, chicken, dry?

Cornstarch has 381 calories per 100g, close to gravy, chicken, dry at 381 — 0 calories fewer per 100g. See the full macro breakdown above.

How many servings of cornstarch for 20g of protein?

With 0.3g of protein per 100g, you'd need roughly 6667g of cornstarch to reach 20g of protein

Foods with a similar calorie count

Other snacks closest to cornstarch by calories per 100g:

FoodCaloriesProteinCarbsFat
Cornstarch (this page)381 kcal0.3g91.3g0.1g
Gravy, Chicken, Dry381 kcal11.3g62.1g9.7g
Cereals Ready-to-eat, Quaker, King Vitaman381 kcal6.4g83.8g3.4g
Cereals Ready-to-eat, Kellogg, Kellogg'S Rice Krispies381 kcal6.8g85.0g2.0g
Cereals Ready-to-eat, General Mills, Nature Valley Low Fat Fruit Granola381 kcal7.9g79.4g4.7g
Cereals Ready-to-eat, Kellogg, Kellogg'S Low Fat Granola with Raisins381 kcal9.0g80.1g5.2g
Cereals Ready-to-eat, General Mills, Rice Crunchins381 kcal4.8g81.0g2.4g

More kit for cornstarch tracking

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Last updated:

Nutrition data: USDA FoodData Central (public domain, CC0 1.0). Values are per 100g unless stated.