How Many Grams in 3 Cups of Pumpkin Seeds?

Precise conversion for baking and cooking.

The exact weight is
387
grams
3 cups of pumpkin seeds = 387g  ·  Based on 129g per cup

🔢 Quick Calculator

cups of pumpkin seeds = 387g

Pumpkin Seeds — All Cup-to-Gram Conversions

Cups Grams Ounces
⅛ cups 16g 0.6 oz
¼ cups 32g 1.1 oz
⅓ cups 43g 1.5 oz
½ cups 64g 2.3 oz
⅔ cups 86g 3.0 oz
¾ cups 97g 3.4 oz
1 cup 129g 4.6 oz
1¼ cups 161g 5.7 oz
1½ cups 194g 6.8 oz
1¾ cups 226g 8.0 oz
2 cups 258g 9.1 oz
2½ cups 322g 11.4 oz
3 cups 387g 13.7 oz
4 cups 516g 18.2 oz
5 cups 645g 22.8 oz
💡 Pro Tip: Pepitas are the green inner seeds without the white shell.

Why Weigh Pumpkin Seeds in Grams?

When a recipe calls for 3 cups of pumpkin seeds, using a kitchen scale to measure exactly 387 grams will give you far more consistent results than volume measurement alone. This is because pumpkin seeds can be packed, sifted, or scooped differently each time, leading to weight variations of up to 20%.

How to Measure Pumpkin Seeds by Weight

Place your mixing bowl on a digital kitchen scale and press "tare" to zero it out. Then add pumpkin seeds until the scale reads 387g. This method is faster than measuring cups and eliminates the guesswork entirely.

Also Known As

Pumpkin Seeds is sometimes referred to as pepitas. The same conversion of 129g per cup applies regardless of the name used.

Frequently Asked Questions

3 cups of pumpkin seeds weighs exactly 387 grams or approximately 13.7 ounces. This is based on a standard US cup measurement of 129 grams per cup.
Yes, the density of pumpkin seeds (129g per cup) is consistent across brands. Minor variations of ±5% may occur depending on grind, moisture, and how the ingredient is packed into the cup — which is exactly why weighing with a scale is recommended.
If measuring by cups, whether you sift can change the weight by 10-20%. When measuring by weight (387g), sifting doesn't affect accuracy since you're targeting an exact gram amount regardless of volume.
This conversion uses the US standard cup (236.6ml, commonly rounded to 240ml). If you're using a metric cup (250ml), the weight will be slightly higher. For perfect accuracy, always use a kitchen scale.

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