If you are trying to figure out how much is 1 cup peanut butter in grams or half cup or ¼ cup peanutter in grams, because you want to use peanut butter in baking or cooking because some recipes use cups and others use grams, here is the quick answer:
1 cup of peanut butter is about 255 grams
½ cup peanut butter in grams is approximately equal to 128 grams
¼ cup peanut butter is approximately equal to 64 grams
That’s the standard conversion from cups to grams that most people use for baking and cooking while using peanut butter as one of the ingredients!

Whether you use crunchy peanut butter or smooth and creamy one, peanut butter is pretty dense compared to ingredients like flour, so the weight is higher than many other ingredients that you usually use for baking or cooking. For example, a cup of flour is only around 120 grams, while peanut butter is closer to 255 grams!
Though there can be a small difference depending on the type of peanut butter:
Creamy peanut butter is usually around 255 g
Chunky peanut butter can vary slightly because of the peanut pieces but But honestly, for most recipes, using 255 grams works perfectly fine!
Also try this peanut butter chocolate chip cookies using 1 cup peanut butter since you can now easily convert one cup peanut butter in grams!
You might also see peanut butter measured in ounces (oz) on jars. A cup of peanut butter is roughly:
9 ounces (9 oz) by weight
In brief, for quick reference:
1 cup peanut butter = about 255 grams
½ cup peanut butter = about 128 grams
¼ cup peanut butter = about 64 grams
⅛ cup peanut butter = about 32 grams
⅔ cup = about 170 grams
⅓ cup = 85 grams
1 tablespoon peanut butter = about 16 grams
If you bake a lot, a kitchen scale makes things much easier — especially with sticky ingredients like peanut butter!
Also see these posts on 1 cup cooked rice in grams, 1 cup pumpkin puree in grams, how much pumpkin puree in 15 oz can etc for similar conversions using simple everyday ingredients, for easy baking conversions!
recipes using peanut butter:
4 ingredient peanut butter cookies using 1 cup peanut butter
peanut butter oatmeal porridge
peanut butter milkshake without ice cream
blueberry peanut butter chocolate smoothie





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