Calories in
nuts, pecans
691 kcal per 100 g Nuts, pecans contains 691 calories per 100 grams, or about 753 calories per cup, chopped. Per 100 g it provides 9.2 g protein, 13.9 g carbohydrate and 72.0 g fat.
By calories that splits 7% carbohydrate, 5% protein, 88% fat.
Calories in a typical serving
Per-100 g figures are useful for comparison but nobody eats 100 g of anything on purpose. These are the USDA's own household measures.
| Serving | Grams | Calories | Protein | Carbs | Fat |
|---|---|---|---|---|---|
| 1 cup, chopped | 109.0 g | 753 | 10.0 g | 15.1 g | 78.4 g |
| 1 cup, halves | 99.0 g | 684 | 9.1 g | 13.7 g | 71.3 g |
| 1 oz (19 halves) | 28.4 g | 196 | 2.6 g | 3.9 g | 20.4 g |
Full nutrition, per 100 g and per cup, chopped
| Nutrient | Per 100 g | Per cup, chopped |
|---|---|---|
| Energy | 691 kcal | 753 kcal |
| Protein | 9.2 g | 10.0 g |
| Total fat | 72.0 g | 78.4 g |
| Saturated fat | 6.2 g | 6.7 g |
| Carbohydrate | 13.9 g | 15.1 g |
| Fibre | 9.6 g | 10.5 g |
| Sugars | 4.0 g | 4.3 g |
| Sodium | 0.0 mg | 0.0 mg |
| Potassium | 410.0 mg | 446.9 mg |
| Calcium | 70.0 mg | 76.3 mg |
| Iron | 2.5 mg | 2.8 mg |
| Vitamin C | 1.1 mg | 1.2 mg |
| Vitamin A | 3.0 µg | 3.3 µg |
| Cholesterol | 0.0 mg | 0.0 mg |
| Water | 3.5 g | 3.8 g |
USDA FoodData Central, SR Legacy (FDC ID 170182). A dash means the nutrient was not measured for this item, which is not the same as zero.
How nuts, pecans compares
Among the 37 nut and seed products items on this site, nuts, pecans ranks 3 of 37 by calorie density, against a category average of 450 kcal per 100 g — so it is about 54% more calorie-dense than typical for its group.
It carries 1.3 g of protein per 100 calories, so it is not a meaningful protein source.
To burn off one cup, chopped (753 kcal), a 70 kg adult would walk for roughly 154 minutes — see the walking calculation on our sister site, or pick a different activity. Treat that as a sense of scale rather than a rule: eating and moving are not a simple ledger.
Questions
How many calories are in nuts, pecans?
Nuts, pecans contains 691 calories per 100 g, which works out to about 753 calories per cup, chopped. It also provides 9.2 g of protein, 13.9 g of carbohydrate and 72.0 g of fat per 100 g.
What is the macro breakdown of nuts, pecans?
By calories, nuts, pecans is roughly 7% carbohydrate, 5% protein and 88% fat. That makes it a predominantly fat-based food.
How long does it take to burn off a cup, chopped?
About 154 minutes of ordinary walking for a 70 kg adult (MET 4.0). That is a rough guide for scale, not a prescription — appetite and activity interact in ways a simple subtraction does not capture.
Is this figure exact for the nuts, pecans I bought?
No. These are USDA reference values, averaged across samples. Real foods vary with variety, ripeness, growing conditions, cut, brand and how they were cooked — 10–20% either way is normal. Use them for planning, not precision.
Similar foods
Closest in calorie density within nut and seed products.
Source: USDA FoodData Central, SR Legacy — public domain. Full USDA description: "Nuts, pecans". General information only — not medical or nutrition advice. Values are averages for a food type and vary by brand, ripeness and preparation.