Pecan Fat Per 100g Calculator

Pecans are one of the most fat-dense nuts you can eat, and their rich, buttery flavor makes portion control tricky. A typical 100 g serving of raw pecan halves provides about 72 g of fat — over 90% of the daily value for fat on a 2,000-calorie diet. This Pecan Fat Per 100g Calculator turns grams, ounces, or cups into a clear fat profile in seconds.

Enter the amount you plan to eat, choose your unit, and the calculator returns total fat, fat calories, and the percentage of the daily value. It also breaks the fat down into saturated, monounsaturated, and polyunsaturated grams, using USDA reference data for raw pecans.

This tool is handy for keto and low-carb eaters, meal preppers, dietitians, and anyone comparing nuts or writing nutrition notes. No sign-up, no guesswork — just accurate numbers you can copy or screenshot.

🥜 Enter Pecan Amount

Show fat-type breakdown

📊 Fat Summary

Enter an amount above and press Calculate Fat.

Total Fat—

Fat Calories—

% Daily Value*—

Fat Type Breakdown

Saturated—

Monounsaturated—

Polyunsaturated—

*Daily value based on 78 g total fat for a 2,000-calorie diet.

Pecans pack more fat per gram than almost any other nut, so a small visual handful can quietly deliver a quarter of the daily fat allowance. This reference guide explains the numbers behind the calculator, shows worked examples, and answers common questions about pecan fat.

How This Calculator Works

The calculation starts by converting your portion into grams. One ounce equals 28.3495 g, and one cup of pecan halves is estimated at 99 g — a value from USDA recipe analyses. Chopped pecans are denser, at roughly 109 g per cup, so if you used chopped nuts, expect slightly higher fat for the same cup volume.

The calculator then applies the nutrient profile of raw pecans. For every 100 g, USDA FoodData Central lists total fat as 71.97 g, saturated fat as 6.18 g, monounsaturated fat as 40.80 g, polyunsaturated fat as 21.61 g, and energy as 691 kcal. Multiplying your gram weight by 71.97 / 100 gives total fat. Multiplying that by 9 gives fat calories, since dietary fat provides 9 kcal per gram. Dividing total fat by the 78 g Daily Value and multiplying by 100 converts it to a percentage of a 2,000-calorie diet.

Reference values for raw pecans (per 100 g): total fat 71.97 g · saturated fat 6.18 g · monounsaturated fat 40.80 g · polyunsaturated fat 21.61 g · energy 691 kcal.

Worked Examples

Example 1 — 1 oz (28.35 g). Fat = 28.35 × 71.97 / 100 = 20.40 g. Fat calories = 20.40 × 9 = 184 kcal. Daily value = 20.40 / 78 × 100 = 26%. That is roughly 19 pecan halves.

Example 2 — 30 g handful. Fat = 30 × 71.97 / 100 = 21.59 g. Fat calories ≈ 194 kcal. Daily value ≈ 28%.

Example 3 — 75 g snack bowl. Fat = 75 × 71.97 / 100 = 53.98 g. Fat calories ≈ 486 kcal. Daily value ≈ 69%. If you track saturated fat, that portion contains about 4.6 g.

Why the Numbers Matter

Pecans are roughly 72% fat by weight, which puts them near the top among tree nuts. That makes them excellent for keto and low-carb diets, but it also means portion size drives calories quickly. A 100 g serving provides 691 kcal; fat alone accounts for approximately 648 kcal, leaving only a small amount of energy from protein and carbohydrate. For context, 100 g of almonds has about 579 kcal, and 100 g of walnuts about 654 kcal, so pecans are calorie-dense even in nut terms.

Monounsaturated fat is the dominant fat in pecans, contributing about 41 g per 100 g. Replacing saturated fat with monounsaturated sources is a common dietary pattern recommended for heart health. The 6.18 g of saturated fat in 100 g of pecans is about 31% of the 20 g Daily Value for saturated fat, which is useful for anyone tracking cholesterol-related targets.

Reference Table: Pecan Fat at Common Portions

Values are rounded to one decimal place. Cup measurements assume lightly packed pecan halves.

Portion	Grams	Total Fat	Saturated	Fat Calories
1 oz (about 19 halves)	28.3 g	20.4 g	1.8 g	184 kcal
¼ cup halves	25 g	18.0 g	1.5 g	162 kcal
30 g handful	30 g	21.6 g	1.9 g	194 kcal
½ cup halves	50 g	36.0 g	3.1 g	324 kcal
100 g	100 g	72.0 g	6.2 g	648 kcal

Common Questions

Are pecan fats healthy? Yes. Around 87% of the fat in pecans is unsaturated. Monounsaturated fat is the largest share at about 41 g per 100 g, and polyunsaturated fat adds about 22 g, mostly linoleic acid, an essential omega-6 fatty acid. Saturated fat is only about 6 g per 100 g.

Why does the package label show slightly different numbers? Fat content varies with pecan variety, growing region, harvest year, and laboratory method. The USDA values used here are averages from composite samples, so real packages can differ by a gram or two per 100 g. Some brands also sell toasted, oil-roasted, or candied pecans, which have different fat and added-calorie profiles.

Can I use this for pecan oil or pecan butter? Not directly. Pecan oil is nearly 100% fat, and pecan butter has the same proportions as raw nuts but may include added oils, sweeteners, or salt. Use the product label for processed items.

Does roasting change the fat content? Dry roasting mostly removes water and can make fat slightly more concentrated by weight, while oil roasting adds fat. If a roasted product lists its own nutrition facts, use those rather than raw pecan values.

Tips for Tracking Fat Intake

Weigh pecans in grams for the most accurate result. Home measuring cups can vary by nearly 20% depending on whether halves are packed tightly or left loose, and large halves weigh noticeably more than small ones.

If you are counting calories, remember that fat provides 9 kcal per gram, more than double the 4 kcal per gram from protein and carbohydrate. A handful of pecans is often closer to 200 kcal than many snack labels suggest.

If you follow a medically prescribed fat limit — for example, for pancreatic conditions — check with your dietitian before relying on general Daily Value percentages. Your target may be much lower than 78 g.

Additional Resources

Reference values come from the USDA FoodData Central. For broader dietary guidance, see the Dietary Guidelines for Americans.