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Peanut Butter — Ounces in Cups
1 ounce of peanut butter equals 0.12 ( ~ 1/8) cups*
About peanut butter measurements
Peanut butter packs dense and sticky at around 1.01 g/ml (about 240 g per cup), but only once you press out the air pockets. Natural styles separate, so a scoop from the oily top weighs less than one from the stiff bottom; stir the jar fully before measuring for a true reading.

Ounces of peanut butter equivalent in cups?
FAQs on peanut butter weight to volume conversion
1 ounce of peanut butter equals how many cups?
1 ounce of peanut butter is equivalent 0.12 ( ~ 1/8) cups.
How much is 0.12 cups of peanut butter in ounces?
0.12 cups of peanut butter equals 1 ounce.
Ounces to Cups of Peanut butter Conversion Chart
Note: Fractions are rounded to common recipe fractions (1/8, 1/4, 1/3, 1/2, 2/3, 3/4…). Values are rounded to 3 significant figures.
| Ounces to cups of Peanut butter | |
|---|---|
| 0.00739 cups | |
| 0.0148 cups | |
| 0.0295 cups | |
| 0.0394 cups | |
| 0.0591 cups | |
| 0.0788 ( ~ 1/8 ) cups | |
| 0.0886 ( ~ 1/8 ) cups | |
| 1 ounce | 0.118 ( ~ 1/8 ) cups |
| 1 | 0.126 ( ~ 1/8 ) cups |
| 1 | 0.133 ( ~ 1/8 ) cups |
| 1 | 0.148 ( ~ 1/8 ) cups |
| 1 | 0.158 ( ~ 1/8 ) cups |
| 1 | 0.177 ( ~ 1/8 ) cups |
| 1 | 0.197 ( ~ 1/4 ) cups |
| 1 | 0.207 ( ~ 1/4 ) cups |
| 2 ounces | 0.236 ( ~ 1/4 ) cups |
| 2 | 0.244 ( ~ 1/4 ) cups |
| 2 | 0.251 ( ~ 1/4 ) cups |
| 2 | 0.266 ( ~ 1/4 ) cups |
| 2 | 0.276 ( ~ 1/4 ) cups |
| 2 | 0.295 ( ~ 1/3 ) cups |
| 3 ounces | 0.355 ( ~ 1/3 ) cups |
| 4 ounces | 0.473 ( ~ 1/2 ) cups |
| 5 ounces | 0.591 ( ~ 2/3 ) cups |
| 6 ounces | 0.709 ( ~ 3/4 ) cups |
| 8 ounces | 0.945 ( ~ 1 ) cups |
| 10 ounces | 1.18 ( ~ 1 1/8 ) cups |
References:
Weight to Volume Conversions - Recipes
A note on cooking ingredients measurements
Notes: results are rounded (by default) to 3 significant figures. Cooking conversions use standard ingredient densities — the exact weight varies slightly with the brand and how tightly the ingredient is packed ☺.