how many grams in a cup of walnuts?

try a different amount

conversion reference

things people ask

• Does a cup of chopped walnuts weigh the same as a cup of halves?
  No. Halves leave air pockets and come in around 113 g per cup, while finely chopped walnuts pack denser and run 120-130 g. Banana-walnut bread and brownie recipes that say 'one cup walnuts, chopped' usually mean measure first, then chop — measuring after chopping adds 10-15% more nut by weight, which can throw off a tight crust or fudge ratio.
• How much should I toast before folding walnuts into a batter?
  Spread one cup (113 g) on a sheet pan and toast at 350°F for 8-10 minutes, shaking once. The oils wake up and the flavor turns from grassy to buttery. If the papery brown skins taste bitter to you, rub the warm nuts in a clean towel afterward — that tannin layer is what gives raw walnuts their astringent edge in carrot cake or coffee cake.
• Can I sub pecans cup-for-cup for walnuts in baking?
  Roughly, yes. A cup of pecan halves is also near 99-110 g, so the volume swap holds. Flavor differs — pecans are sweeter and softer, walnuts are sharper and hold more crunch through a bake. In a walnut crust for cheesecake or a brownie that leans bittersweet, pecans will read milder; bump the cocoa or coffee by a touch to compensate.

related conversions

• Walnuts: tablespoons to grams
• Walnuts: teaspoons to grams
• Walnuts guide