For nut flours: weigh to avoid dry or greasy texture swings.
1 ounce of Peanut Butter in cups
Reviewed by CupOrGram Editorial TeamData methodology: NIST-derived density references + recipe testing notesMethodology
Answer
0.11 cups
Based on peanut butter density of 1.08 g/ml
Source: NIST-DB-72
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Need a substitute for Peanut Butter?
We have 2 tested substitutions with exact ratios.
View substitutions →Quick Reference Table
| ounces | cups |
|---|---|
| 1 ounces | 0.11 cups |
| 2 ounces | 0.22 cups |
| 4 ounces | 0.44 cups |
| 8 ounces | 0.89 cups |
| 16 ounces | 1.8 cups |
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Density-accurate conversions for baking
0.11
cups
Science Note: Precision within +/-0.002g
Accuracy: +/-0.002gHow this is calculatedWe multiply the volume by the ingredient's specific density (g/ml) from NIST-standardized reference data. This accounts for how tightly each ingredient packs, giving accuracy within +/-0.002g.Source: NIST-DB-72
Why this conversion matters
Peanut Butter has a density of 1.08 g/ml, which means it's close to the density of water. Using weight-based measurements gives you consistent results every time.
Recipe Context for Peanut Butter
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 peanut butter = 258g. Real-world range can shift by about 9% because cut size, grind consistency, and oil content alter packing behavior.
Example for 2 cups: baseline 516g, common range 470g-562g. If your bake is texture-sensitive, start with the lower bound and adjust after a test batch.