how many grams in a cup of peanuts?

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things people ask

• How many peanuts are in a cup?
  Around 142 g of shelled peanuts, which works out to roughly 150-170 whole kernels depending on size. That's the standard amount called for in a 1-cup batch of candied peanuts or peanut brittle, and it's enough peanuts to blend into about 200 g of homemade peanut butter once oil and salt are factored in.
• Does roasting change the cup weight?
  Not by much. Roasting drives off moisture, so 1 cup of dry-roasted peanuts can run 138-142 g versus 142-145 g for raw — a 2-3 g shift. For brittle, kung pao chicken, or satay sauce where the cup is the working unit, you can treat raw and roasted peanuts as interchangeable by volume without recalculating ratios.
• Are peanuts technically nuts when a recipe says 'one cup of nuts'?
  Peanuts are legumes, not tree nuts — they grow underground in pods like beans. For most cup-scale recipes (cookies, brittle, granola), they swap in for almonds or cashews at 1:1 by volume. But the allergen profile is completely separate from tree nuts, which matters when you're scaling a recipe for someone with a specific allergy.

related conversions

• Peanuts: tablespoons to grams
• Peanuts: teaspoons to grams
• Peanuts guide