Tortilla chips serving size, cups to grams
Here a serving of plain tortilla chips is counted as 1 cup, which USDA weighs at 1.1 oz (30 g), with 142 calories and 2.1 g protein. 100 g (3.5 oz) is about 3 1/3 cups.
Serving sizes of plain tortilla chips
Every household measure USDA weighs for this food, plus 1 oz and 100 g.
| Measure | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 cup | 1.1 oz (30 g) | 142 calories | 2.1 g | 20.3 g | 6.2 g |
| 1 chip | 3 g | 14 calories | 0.21 g | 2 g | 0.62 g |
| 1 oz | 1 oz (28 g) | 134 calories | 2 g | 19.2 g | 5.9 g |
| 100 g | 3.5 oz (100 g) | 472 calories | 7.1 g | 67.8 g | 20.7 g |
Cups to grams
USDA weighs 1 cup of plain tortilla chips at 30 g. Smaller measures follow from it (1 cup = 16 tbsp = 48 tsp).
| Measure | Weight | Calories |
|---|---|---|
| 1 cup | 1.1 oz (30 g) | 142 calories |
| 3/4 cup | 22.5 g | 106 calories |
| 2/3 cup | 20 g | 94 calories |
| 1/2 cup | 15 g | 71 calories |
| 1/3 cup | 10 g | 47 calories |
| 1/4 cup | 7.5 g | 35 calories |
| 1 tbsp | 1.9 g | 9 calories |
| 1 tsp | 0.6 g | 3 calories |
Grams and ounces to cups
| Weight | Volume | Calories |
|---|---|---|
| 1 oz | 1 cup | 134 calories |
| 100 g (3.5 oz) | 3 1/3 cups | 472 calories |
| 1 lb (454 g) | 15 1/8 cups | 2141 calories |
What 3.5 oz (100 g) of tortilla chips looks like
3.5 oz (100 g) of plain tortilla chips is 3.5 oz, or about 3 1/3 cups or 33 chips. It has 472 calories, 7.1 g protein, 67.8 g carbs and 20.7 g fat. One chip weighs 3 g.
How much tortilla chips for 30 g of protein
There is 7.1 g of protein in 3.5 oz (100 g) of plain tortilla chips, so 30 g of protein would take 14.9 oz (423 g), about 14 1/8 cups, with 1994 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 tortilla chips: Tortilla chips, plain, FDC ID 2708202 (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.