1 cup of Walnuts (halves) in grams

Reviewed by CupOrGram Editorial TeamData methodology: NIST-derived density references + recipe testing notesMethodology
Answer
99.4 grams
Based on walnuts (halves) density of 0.42 g/ml
Source: NIST-DB-72
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Quick Reference Table

cupsgrams
1/4 cups24.8 grams
1/3 cups32.8 grams
1/2 cups49.7 grams
1 cups99.4 grams
1.50 cups149 grams
2 cups199 grams
3 cups298 grams
4 cups397 grams

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Density-accurate conversions for baking

99.4
grams
Science Note: Precision within +/-0.002g
Accuracy: +/-0.002gHow this is calculatedSource: NIST-DB-72

Why this conversion matters

Walnuts (halves) has a density of 0.42 g/ml, which means it's very light — volume measurements can be especially misleading. Using weight-based measurements gives you consistent results every time.

Recipe Context for Walnuts (halves)

For nut flours: weigh to avoid dry or greasy texture swings.

For seed gels: hydration ratio directly affects binding strength.

For toppings: weight gives consistent coverage and bake color.

Common Pitfalls

  • Switching brands without re-checking weight can change texture and bake time.
  • Using volume-only measurements for dense ingredients can overshoot recipe targets.

Brand Variance Example

Baseline on this page: 1 cup walnuts (halves) = 100g. Real-world range can shift by about 9% because cut size, grind consistency, and oil content alter packing behavior.

Example for 2 cups: baseline 200g, common range 182g-218g. If your bake is texture-sensitive, start with the lower bound and adjust after a test batch.

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