Pecan pie serving size and weights
Here a serving of pecan pie is counted as 1 piece, which USDA weighs at 4.3 oz (122 g), with 503 calories and 6 g protein.
Serving sizes of pecan pie
Every household measure USDA weighs for this food, plus 1 oz and 100 g.
| Measure | Weight | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 piece | 4.3 oz (122 g) | 503 calories | 6 g | 63.7 g | 27.1 g |
| 1 oz | 1 oz (28 g) | 117 calories | 1.4 g | 14.8 g | 6.3 g |
| 100 g | 3.5 oz (100 g) | 412 calories | 4.9 g | 52.2 g | 22.2 g |
What 3.5 oz (100 g) of pecan pie looks like
3.5 oz (100 g) of pecan pie is 3.5 oz, or about 3/4 piece. It has 412 calories, 4.9 g protein, 52.2 g carbs and 22.2 g fat. One piece weighs 4.3 oz (122 g).
How much pecan pie for 30 g of protein
There is 4.9 g of protein in 3.5 oz (100 g) of pecan pie, so 30 g of protein would take 21.6 oz (612 g), with 2522 calories. It is not a practical way to reach a protein target.
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Sources
Weights and nutrition: USDA FoodData Central, food portions and nutrients (FoodData Central, April 2026 release, accessed 2026-10-14)
- Pecan pie (prepared from recipe): Pie, pecan, prepared from recipe, FDC ID 172786 (SR Legacy, published 2019-04-01)
- 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.