How Many Calories Are in Pumpkin Seeds and Puree? By Serving Size

Calorie totals vary with seed weight, pumpkin preparation, and added ingredients. Plain seeds contain about 160 calories per ounce, seed purée contains 50 to 60 calories per tablespoon, and plain canned pumpkin contains 25 to 50 calories per half cup.

This guide gives you serving conversions, label-based estimates, and a practical method for tallying seeds, pumpkin purée, oil, milk, butter, and sugar in your own recipes.

Plain Seed Portions Establish the Baseline

An ounce of plain pumpkin seeds, also called pepitas, supplies about 160 calories. That portion weighs 28.35 grams and commonly falls between 150 and 170 calories, depending on processing and seed variety.

A 100-gram portion raises the total to about 560 to 570 calories because it weighs roughly 3.5 ounces. Its calorie density comes largely from fat, so a large handful can consume much more energy than a measured ounce.

That 100-gram baseline lets you scale any seed weight without relying on a loose handful. Multiply grams by 5.6 for a plain-seed estimate, or divide the total recipe weight into equal portions after adding other ingredients.

The “Calories” line on a Nutrition Facts panel means kilocalories, the unit used to describe food energy. Manufacturers round these values, commonly to the nearest 5 or 10 calories, which accounts for small differences across labels.

Roasting Changes Texture More Than Seed Energy

Dry-roasted seeds contain nearly the same amount of energy as raw seeds because heat alone removes little fat. One ounce remains close to 160 calories, although the crunchier texture can make the portion easier to overeat.

Oil supplies roughly 120 calories per tablespoon, regardless of roasting temperature. A quarter-pound bag of raw seeds contains about 560 calories, while an oil-roasted version can reach 680 calories or more because some oil remains attached.

Your label comparison should start with weight rather than package size. For example, 30 grams at 170 calories per 28 grams gives about 182 calories; sweetened varieties can vary much more because sugar or glaze adds energy.

“Compare serving weights before comparing two bags. A “1 oz” serving and a “1/4 cup” serving can contain different amounts of seeds.

FoodData Central values also vary by processing and seed variety, which supports using a range until you have a product label. For salted seeds, track sodium separately because salt changes sodium content without adding calories.

Pumpkin Flesh Differs Sharply from Seed Purée

A tablespoon of unsweetened pumpkin seed purée contains about 50 to 60 calories. Blending seeds with water changes the texture without removing their fat, protein, fiber, or calorie density.

Plain pumpkin flesh purée is much lighter. A half-cup serving generally contains 25 to 50 calories, and a full cup often contains 50 to 100 calories; homemade purée, pie filling, and creamy soup follow different recipes.

Water adds no calories, so a seed-and-water purée retains nearly the same energy per seed weight as whole seeds. Milk, cream, butter, sugar, syrup, and seed butter raise the total sharply by adding fat or carbohydrates.

You can identify the denser ingredient by its texture and base. Canned pumpkin flesh is soft and watery, while seed purée is thick, creamy, and rich; two tablespoons of a thick spread can hold twice the energy of thin pumpkin purée.

That density difference is why converting a single ingredient will not reliably predict the calories in a spoonful.

Converted Measurements Give You a Personal Estimate

One ounce equals 28.35 grams, and plain seeds contain about 5.6 calories per gram. That conversion helps you scale a recipe even without a package label, although a kitchen scale gives you the most reliable portion weight.

1. 1Convert ounces to grams. Multiply the ounce amount by 28.35, then apply about 5.6 calories per gram for plain seeds.
2. 2Convert grams to ounces. Divide grams by 28.35, then multiply by roughly 160 calories for a quick seed estimate.
3. 3Weigh one full cup. Whole and shelled seeds pack differently, so a cup measure does not always represent another cup equally.
4. 4Measure seed purée. Start with 50 to 60 calories per tablespoon until a label or weighed yield gives you a product-specific number.
5. 5Read package servings. Multiply label calories by the number of listed servings to estimate the full package total.

Half a cup of plain canned pumpkin may contain 40 calories, while the same volume of seed purée can contain 300 calories or more. Your calculation must reflect the ingredient because volume alone cannot describe either food accurately.

“Weigh one cup of your seeds and record its calorie total. That personal conversion factor fits the seed shape and packing density in your kitchen.

Your label supplies the strongest starting point for flavored varieties. A cup figure also helps with conversions, but whole seeds and shelled pepitas can have different weights because the shells contribute volume without edible calories.

Combined Recipes Require an Ingredient-by-Ingredient Total

Every energy-containing ingredient belongs in the calculation. Add the seed portion, pumpkin purée, and ingredients such as oil, milk, butter, sugar, syrup, or seed butter before dividing the total by the recipe yield.

Your working example begins with one ounce of plain seeds at about 160 calories. Two tablespoons of seed purée add roughly 110 calories, producing an estimated total of 270 calories.

Adding one tablespoon of oil raises that example to about 390 calories. Dividing 390 by four equal portions gives roughly 98 calories per serving, which keeps the portion math tied to the full recipe yield.

Your calculation should subtract pumpkin ingredients only from a completed dish total that already includes them. Calculating each ingredient separately avoids missing the energy supplied by milk, cream, butter, sugar, syrup, or oil.

A canned-pumpkin label cannot estimate a prepared soup, smoothie, or pie filling. Those dishes gain calories from their other ingredients, so a complete ingredient list or a weighed batch yield gives you a sounder total.

Measured Portions Support Your Calorie Plan

Seed purée is easy to underestimate because one tablespoon can range from thin to spreadable. A generous scoop may hold twice the intended amount, so weighing your portion creates a number you can reproduce.

• ▸Select plain seeds. Raw or dry-roasted pepitas contain no calories from added oil, sugar, or coatings.
• ▸Measure the purée. Use a scale or fixed tablespoon before adding seed purée to a bowl or recipe.
• ▸Account for healthy fats. Pumpkin seeds supply unsaturated fat, protein, fiber, and substantial nutritional value in a compact portion.
• ▸Separate the pumpkin flesh. Plain canned pumpkin adds volume with far fewer calories than seed purée.
• ▸Check sodium values. Salted seeds can contain more sodium even though salt adds no calories.
• ▸Record homemade yields. A batch count keeps portion totals accurate as ingredients or serving sizes change.

Your next step is to weigh one serving and record its seed or purée weight. Add every oil, sweetener, dairy ingredient, or butter in the recipe before deciding whether your portion fits your calorie-control goal.

Seed portions contribute protein, fiber, carbohydrates, and healthy fats, while their calorie density remains high by weight. Plain pumpkin flesh can add bulk to soup, oatmeal, or baked dishes with fewer calories, provided the other ingredients are included.

Your Calorie Baseline

Use about 160 calories for one ounce of plain pumpkin seeds, 560 to 570 for 100 grams, and 50 to 60 for a tablespoon of unsweetened seed purée. Plain pumpkin flesh is much lighter, while oil, sugar, dairy, and butter alter the total quickly.

You get the clearest figure by weighing seeds, measuring purée, and totaling every added ingredient. Your package label or weighed recipe yield then replaces the general ranges with a number suited to the food in front of you.

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