Quick answer: King Arthur Baking lists 1/2 cup of peanut butter at 135 g, which works out to 270 g per US cup, 16.9 g per tablespoon and 5.62 g per teaspoon. So 100 g of peanut butter is about 3/8 cup (0.37 cups).
Private by designRuns in your browser. Nothing is sent.
Share, print or citeCopy a link with your numbers.
Peanut butter: grams per cup
King Arthur Baking lists 1/2 cup of peanut butter at 135 g, which works out to 270 g per US cup, 16.9 g per tablespoon and 5.62 g per teaspoon. So 100 g of peanut butter is about 3/8 cup (0.37 cups).
Butter is easiest by weight or by the wrapper markings: one US stick is 1/2 cup.
Grams to cups chart
Grams
Kitchen measure
Cups (decimal)
Tablespoons
25 g
1/8 cup
0.093
1.5
50 g
1/8 cup
0.185
3
100 g
3/8 cup
0.37
5.9
125 g
1/2 cup
0.463
7.4
150 g
1/2 cup
0.556
8.9
200 g
3/4 cup
0.741
11.9
250 g
7/8 cup
0.926
14.8
300 g
1 1/8 cup
1.111
17.8
400 g
1 1/2 cup
1.481
23.7
500 g
1 7/8 cup
1.852
29.6
1000 g
3 2/3 cup
3.704
59.3
Cups to grams
Volume
Grams
Ounces
1/4 cup
68 g
2.38 oz
1/3 cup
90 g
3.17 oz
1/2 cup
135 g
4.76 oz
2/3 cup
180 g
6.35 oz
3/4 cup
202 g
7.14 oz
1 cup
270 g
9.52 oz
1 tablespoon
17 g
0.6 oz
1 teaspoon
6 g
0.2 oz
Source: King Arthur Baking, Ingredient Weight Chart. Kitchen measures are rounded to the nearest common cup fraction.
