How many grams in a cup of peanut butter?

1 cup of peanut butter weighs 270 grams (9.5 oz). Half a cup is 135 grams and a tablespoon is about 17 grams. Use the converter for any other amount.

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1 cup of peanut butter weighs

270 g

9.5 oz

Cups of peanut butter to grams

Cups	Grams	Ounces
⅛ cup	34 g	1.2 oz
¼ cup	68 g	2.4 oz
⅓ cup	90 g	3.2 oz
½ cup	135 g	4.8 oz
⅔ cup	180 g	6.3 oz
¾ cup	203 g	7.1 oz
1 cup	270 g	9.5 oz
1½ cups	405 g	14.3 oz
2 cups	540 g	19 oz
3 cups	810 g	28.6 oz
4 cups	1080 g	38.1 oz
1 tablespoon	17 g	0.6 oz
1 teaspoon	5.6 g	0.2 oz

Grams of peanut butter to cups

Grams	Cups	In measuring cups and spoons
25 g	0.09	1⅓ tbsp
50 g	0.19	3 tbsp
100 g	0.37	⅓ cup + ⅔ tbsp
125 g	0.46	⅓ cup + 2 tbsp
150 g	0.56	½ cup + 1 tbsp
200 g	0.74	⅔ cup + 1⅓ tbsp
250 g	0.93	¾ cup + 2⅔ tbsp
300 g	1.11	1 cup + 1⅔ tbsp
500 g	1.85	1¾ cups + 1⅔ tbsp
1000 g	3.7	3⅔ cups + ⅔ tbsp

Measuring peanut butter

Pack peanut butter into the cup to push out air pockets, or weigh it straight into the bowl to skip the sticky cup.

These weights come from the King Arthur Baking ingredient weight chart and assume a level US cup of 236.6 milliliters. For example, 1½ cups of peanut butter is 405 grams.

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Frequently asked questions

How many grams is 1 cup of peanut butter?

1 cup of peanut butter weighs 270 grams, or 9.5 ounces, measured in a level US cup.

How many grams is ½ cup of peanut butter?

½ cup of peanut butter weighs 135 grams. ¼ cup weighs 68 grams.

How many grams are in a tablespoon of peanut butter?

1 tablespoon of peanut butter weighs about 17 grams, and 1 teaspoon about 5.6 grams.

How many cups is 100 grams of peanut butter?

100 grams of peanut butter is 0.37 cups, or about ⅓ cup + ⅔ tbsp.

Last updated November 5, 2026 · Sources: King Arthur Baking ingredient weight chart

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