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Peanut Butter: Cups to Ounces

Enter an amount to convert peanut butter from cups to ounces. One cup of peanut butter is about 9.1 ounces.

1 cup of peanut butter = 9.1 ounces

Peanut Butter Cups to Ounces chart

Common amounts, rounded for the kitchen.

CupsOunces
0.25 cups2.28 ounces
0.33 cups3 ounces
0.5 cups4.55 ounces
0.66 cups6.01 ounces
0.75 cups6.83 ounces
1 cup9.1 ounces
1.5 cups13.7 ounces
2 cups18.2 ounces
3 cups27.3 ounces
4 cups36.4 ounces

Frequently asked questions

How many ounces is 1 cup of peanut butter?
1 cup of peanut butter is about 9.1 ounces, based on a density of 258 grams per cup.
Why isn't this the same for every ingredient?
Because volume and weight only line up through density. Peanut Butter weighs 258 g per cup, so its conversion differs from flour, sugar, or water.

Other Peanut Butter conversions