Pecans are a low-carb, high-fat tree nut, but they are not carb-free. A 100 g serving of raw pecans contains about 13.9 g of total carbohydrates, about 9.6 g of dietary fiber, and around 4.0 g of naturally occurring sugar. That leaves roughly 4.3 g of net digestible carbs per 100 g — a number that matters for keto, low-carb, and diabetes-friendly meal planning.
This pecan carbs per 100g calculator turns any serving size in grams or ounces into a full carbohydrate profile: total carbs, net carbs, fiber, and sugar. It is designed for food trackers, keto dieters, nutrition students, and anyone who wants a quick macro estimate without checking a label. Enter a serving size, choose total or net carbs, and let the calculator do the rest.
🥜 Pecan Carb Calculator
Enter a serving size of raw pecans to see total carbs, net carbs, fiber, and sugar.
Step-by-Step Guide
Start by entering your serving size in grams or ounces. Quick-fill buttons for common portions (1 oz, 30 g, 50 g, 100 g) are included so you can jump straight to a typical snack or baking amount. Choose whether you want total carbohydrates or net carbohydrates, then press Calculate Carbs. The result panel shows your serving's carb profile and a short breakdown of the math.
- Enter or select a serving size.
- Choose grams or ounces.
- Pick "Total carbs" or "Net carbs (total − fiber)".
- Optionally toggle the fiber and sugar detail panel.
- Click Calculate Carbs.
Quick tip: The 1 oz preset matches a standard serving of about 19 pecan halves, which is a handy reference for snacking.
How the Carb Estimate Is Calculated
This tool uses standard nutrition data for raw, unsalted pecans from USDA FoodData Central. The values are scaled linearly from a 100 g reference serving, so the math stays simple and transparent:
Total carbs 13.86 g · Dietary fiber 9.6 g · Sugars 3.97 g · Net carbs 4.26 g (per 100 g)
Net carbs are calculated by subtracting dietary fiber from total carbohydrates, because fiber is not fully digested and absorbed. The calculator first converts your serving to grams (1 oz = 28.3495 g), then multiplies each per-100 g value by the serving weight divided by 100.
Worked Examples
Example 1: 50 g of pecans. 50 ÷ 100 = 0.5, so total carbs = 13.86 × 0.5 = 6.93 g, fiber = 9.6 × 0.5 = 4.80 g, and net carbs = 6.93 − 4.80 = 2.13 g.
Example 2: 1 oz of pecans (28.35 g). 28.35 ÷ 100 = 0.2835, so total carbs = 13.86 × 0.2835 = 3.93 g, fiber = 9.6 × 0.2835 = 2.72 g, and net carbs ≈ 1.21 g.
Reference Data: Raw Pecans per 100 g
| Nutrient | Amount per 100 g |
|---|---|
| Calories | 691 kcal |
| Total carbohydrate | 13.86 g |
| Dietary fiber | 9.6 g |
| Total sugars | 3.97 g |
| Net carbs | 4.26 g |
| Protein | 9.17 g |
| Total fat | 71.97 g |
When to Use This Calculator
This tool is handy any time you need a quick macro estimate for pecans: meal prep, keto or low-carb tracking, diabetes-friendly meal planning, or checking whether a handful fits your daily carb budget. Nutrition students and recipe developers can also use it to convert a pecan portion in a recipe into precise carb numbers without digging through nutrition databases.
Common Mistakes to Avoid
- Entering ounces but reading results as though they were grams — always check the unit selector before calculating.
- Weighing pecans in the shell. Shells add weight but no edible carbs, which skews the estimate.
- Using values for candied, honey-roasted, or chocolate-covered pecans. Added sugar can multiply the carb count.
- Confusing total carbs with net carbs. For keto tracking, net carbs are usually the number that matters.
Frequently Asked Questions
Are pecans keto-friendly?
Yes. Most of the carbohydrate in pecans is fiber, so net carbs are very low — roughly 1.2 g per 1 oz handful. They also provide mostly heart-healthy fats, which fits well with keto and low-carb eating patterns.
How many pecans are in a 100 g serving?
It depends on nut size, but a rough rule of thumb is about 19 pecan halves per 1 oz (28 g), so 100 g is approximately 65–70 halves. Weighing is always more reliable than counting.
Why do total carbs and net carbs differ so much?
Pecans are unusually high in dietary fiber (about 9.6 g per 100 g). Low-carb trackers subtract fiber because it is not digested like starch or sugar, leaving a much smaller digestible carb count.
Pro Tips
- Weigh pecans after shelling; shell waste can throw off your carb math.
- Check the package label for flavored varieties — honey-roasted and candied pecans can have several times more sugar.
- Use a digital food scale for accuracy; volume-based "handful" estimates can vary by 10–20%.
Additional Resources
Nutrition values on this page are adapted from USDA FoodData Central, the official U.S. food composition database. For broader context on daily intake targets, the Dietary Guidelines for Americans provides evidence-based recommendations, and the Wikipedia article on pecans offers background on the nut, its varieties, and cultivation.
- USDA FoodData Central — https://fdc.nal.usda.gov/
- Dietary Guidelines for Americans — https://www.dietaryguidelines.gov/
- Pecan (Wikipedia) — https://en.wikipedia.org/wiki/Pecan