Potato chips serving size, cups to grams
Here a serving of plain potato chips is counted as 1 cup, which USDA weighs at 0.9 oz (25 g), with 133 calories and 1.6 g protein. 100 g (3.5 oz) is about 4 cups.
Serving sizes of plain potato chips
Every household measure USDA weighs for this food, plus 1 oz and 100 g.
| Measure | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 cup | 0.9 oz (25 g) | 133 calories | 1.6 g | 13.5 g | 8.5 g |
| 1 chip | 2 g | 11 calories | 0.13 g | 1.1 g | 0.68 g |
| 1 oz | 1 oz (28 g) | 151 calories | 1.8 g | 15.3 g | 9.6 g |
| 100 g | 3.5 oz (100 g) | 532 calories | 6.4 g | 53.8 g | 34 g |
Cups to grams
USDA weighs 1 cup of plain potato chips at 25 g. Smaller measures follow from it (1 cup = 16 tbsp = 48 tsp).
| Measure | Weight | Calories |
|---|---|---|
| 1 cup | 0.9 oz (25 g) | 133 calories |
| 3/4 cup | 18.8 g | 100 calories |
| 2/3 cup | 16.7 g | 89 calories |
| 1/2 cup | 12.5 g | 66 calories |
| 1/3 cup | 8.3 g | 44 calories |
| 1/4 cup | 6.2 g | 33 calories |
| 1 tbsp | 1.6 g | 8 calories |
| 1 tsp | 0.5 g | 3 calories |
Grams and ounces to cups
| Weight | Volume | Calories |
|---|---|---|
| 1 oz | 1 1/8 cups | 151 calories |
| 100 g (3.5 oz) | 4 cups | 532 calories |
| 1 lb (454 g) | 18 1/8 cups | 2413 calories |
What 3.5 oz (100 g) of potato chips looks like
3.5 oz (100 g) of plain potato chips is 3.5 oz, or about 4 cups. It has 532 calories, 6.4 g protein, 53.8 g carbs and 34 g fat. One chip weighs 2 g.
How much potato chips for 30 g of protein
There is 6.4 g of protein in 3.5 oz (100 g) of plain potato chips, so 30 g of protein would take 16.6 oz (469 g), about 18 3/4 cups, with 2498 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 potato chips: Potato chips, plain, FDC ID 2709422 (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.