Potato soup serving size, cups to grams
Here a serving of potato soup is counted as 1 cup, which USDA weighs at 9 oz (255 g), with 230 calories and 3.9 g protein. 100 g (3.5 oz) is about 1/3 cup.
Serving sizes of potato soup
Every household measure USDA weighs for this food, plus 1 oz and 100 g.
| Measure | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 cup | 9 oz (255 g) | 230 calories | 3.9 g | 26.9 g | 12 g |
| 1 oz | 1 oz (28 g) | 26 calories | 0.43 g | 3 g | 1.3 g |
| 100 g | 3.5 oz (100 g) | 90 calories | 1.5 g | 10.5 g | 4.7 g |
Cups to grams
USDA weighs 1 cup of potato soup at 255 g. Smaller measures follow from it (1 cup = 16 tbsp = 48 tsp).
| Measure | Weight | Calories |
|---|---|---|
| 1 cup | 9 oz (255 g) | 230 calories |
| 3/4 cup | 6.7 oz (191 g) | 172 calories |
| 2/3 cup | 6 oz (170 g) | 153 calories |
| 1/2 cup | 4.5 oz (128 g) | 115 calories |
| 1/3 cup | 3 oz (85 g) | 76 calories |
| 1/4 cup | 2.2 oz (64 g) | 57 calories |
| 1 tbsp | 15.9 g | 14 calories |
| 1 tsp | 5.3 g | 5 calories |
Grams and ounces to cups
| Weight | Volume | Calories |
|---|---|---|
| 1 oz | 1.8 tbsp | 26 calories |
| 100 g (3.5 oz) | 1/3 cup | 90 calories |
| 1 lb (454 g) | 1 3/4 cups | 408 calories |
What 3.5 oz (100 g) of potato soup looks like
3.5 oz (100 g) of potato soup is 3.5 oz, or about 1/3 cup. It has 90 calories, 1.5 g protein, 10.5 g carbs and 4.7 g fat.
Keep exploring
Sources
Weights and nutrition: USDA FoodData Central, food portions and nutrients (FoodData Central, April 2026 release, accessed 2026-10-14)
- Potato soup: Soup, potato, FDC ID 2709556 (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.