Convert Cups of Peanut Butter to Ounces
1 cup of Peanut Butter =
9.0oz
Creamy; natural-style separates and may differ
Frequently Asked Questions
How many grams are in 1 cup of Peanut Butter?
One US cup of Peanut Butter weighs approximately 256g. This is the standard reference weight used by King Arthur Baking and the USDA. Use a kitchen scale for the most accurate measurement; volume measurement can vary by 5-10% depending on how you scoop.
Should I use a scale or measuring cups for Peanut Butter?
A digital kitchen scale is more accurate than measuring cups for Peanut Butter. Volume measurement varies by how you scoop or pack the cup, while weight is consistent. For recipes where precision matters (especially baking), weighing Peanut Butter at 256g per cup gives the most reliable result.
Where do these Peanut Butter conversion values come from?
The conversion values for Peanut Butter on this page come from the following authoritative sources: King Arthur Ingredient Weight Chart;USDA FDC #172470. We cross-reference multiple sources when they're available to ensure accuracy.