Corn chips serving size, cups to grams
Here a serving of plain corn chips is counted as 1 cup, which USDA weighs at 1.6 oz (45 g), with 241 calories and 2.8 g protein. 100 g (3.5 oz) is about 2 1/4 cups.
Serving sizes of plain corn chips
Every household measure USDA weighs for this food, plus 1 oz and 100 g.
| Measure | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 cup | 1.6 oz (45 g) | 241 calories | 2.8 g | 25.6 g | 14.9 g |
| 1 chip | 1 g | 5 calories | 0.06 g | 0.57 g | 0.33 g |
| 1 oz | 1 oz (28 g) | 152 calories | 1.7 g | 16.1 g | 9.4 g |
| 100 g | 3.5 oz (100 g) | 535 calories | 6.1 g | 56.8 g | 33.1 g |
Cups to grams
USDA weighs 1 cup of plain corn chips at 45 g. Smaller measures follow from it (1 cup = 16 tbsp = 48 tsp).
| Measure | Weight | Calories |
|---|---|---|
| 1 cup | 1.6 oz (45 g) | 241 calories |
| 3/4 cup | 1.2 oz (34 g) | 181 calories |
| 2/3 cup | 1.1 oz (30 g) | 160 calories |
| 1/2 cup | 22.5 g | 120 calories |
| 1/3 cup | 15 g | 80 calories |
| 1/4 cup | 11.2 g | 60 calories |
| 1 tbsp | 2.8 g | 15 calories |
| 1 tsp | 0.9 g | 5 calories |
Grams and ounces to cups
| Weight | Volume | Calories |
|---|---|---|
| 1 oz | 2/3 cup | 152 calories |
| 100 g (3.5 oz) | 2 1/4 cups | 535 calories |
| 1 lb (454 g) | 10 1/8 cups | 2427 calories |
What 3.5 oz (100 g) of corn chips looks like
3.5 oz (100 g) of plain corn chips is 3.5 oz, or about 2 1/4 cups. It has 535 calories, 6.1 g protein, 56.8 g carbs and 33.1 g fat. One chip weighs 1 g.
How much corn chips for 30 g of protein
There is 6.1 g of protein in 3.5 oz (100 g) of plain corn chips, so 30 g of protein would take 17.3 oz (490 g), about 11 cups, with 2623 calories. It is not a practical way to reach a protein target.
Keep exploring
Sources
Weights and nutrition: USDA FoodData Central, food portions and nutrients (FoodData Central, April 2026 release, accessed 2026-10-14)
- Plain corn chips: Corn chips, plain, FDC ID 2708196 (FoodData Central survey (FNDDS) 2024-10-31)
- Kitchen measures (1 cup = 16 tbsp, 1 tbsp = 3 tsp): NDSU Extension, Ingredient Substitutions (FN198, J. Garden-Robinson, April 2013 edition). https://www.extension.purdue.edu/extmedia/HHS/HHS-784-W.pdf (accessed 2026-10-12)
How we calculate: each household measure is the gram weight USDA lists for this food. Calories and nutrients are the USDA values per 3.5 oz (100 g) scaled to that weight. 1 oz = 28.35 g and 1 lb = 453.6 g. Cup fractions are rounded to the nearest kitchen measure. A dash (—) means USDA reports no value. How we verify.