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Ingredient guide / peanut-butter

Peanut butter
grams to cups.

Convert peanut butter from grams to cups using King Arthur Baking's 135g per ½-cup reference, normalized exactly to a full cup.

Density reference270g

per 1 cup · chart reference, normalized from ½ cup

Convert an amount
Scale or convert a recipe See the full printable chart Compare density across ingredients Peanut butter cups to grams Why a cup is not one number Read the full measuring guide

Common peanut butter conversions

30 grams0.11 cupsless than a cup
50 grams0.19 cupsless than a cup
80 grams0.30 cupsless than a cup
100 grams0.37 cupsless than a cup
120 grams0.44 cupsless than a cup
150 grams0.56 cupsless than a cup
200 grams0.74 cupsless than a cup
250 grams0.93 cupsless than a cup
500 grams1.85 cupscup measure
Measurement source

King Arthur lists Peanut Butter at ½ cup = 135g; PantryGauge normalizes that stated measure to 270g per cup by exact 2× arithmetic.

Read King Arthur Baking Ingredient Weight Chart

Ingredient questions

Peanut butter FAQ.

How many grams are in a cup of peanut butter?

King Arthur Baking lists 135g for ½ cup. PantryGauge normalizes that exact measure to 270g per US cup by multiplying by two.

Why does peanut butter stick to the cup?

It is viscous and traps air around the measure. Stir it first and use a lightly coated measure if the recipe permits.

Does natural peanut butter convert the same as conventional peanut butter?

Not always. Oil separation, stirring, and brand formulation can change the practical volume, so use the same product state as the recipe.