Quick answer: King Arthur Baking lists 1 cup of vegetable oil at 198 g, which works out to 198 g per US cup, 12.4 g per tablespoon and 4.12 g per teaspoon. So 100 g of vegetable oil is about 1/2 cup (0.51 cups).
Checked Oct 23, 2026. King Arthur lists 1 cup of all-purpose flour as 120 g. 100 g ÷ 120 g = 0.833 cup, which this converter shows as 0.833 cups and rounds to the nearest kitchen measure, 7/8 cup.
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Vegetable oil: grams per cup
King Arthur Baking lists 1 cup of vegetable oil at 198 g, which works out to 198 g per US cup, 12.4 g per tablespoon and 4.12 g per teaspoon. So 100 g of vegetable oil is about 1/2 cup (0.51 cups).
Liquids like oil are measured in a liquid measuring cup at eye level.
Grams to cups chart
Grams
Kitchen measure
Cups (decimal)
Tablespoons
25 g
1/8 cup
0.126
2
50 g
1/4 cup
0.253
4
100 g
1/2 cup
0.505
8.1
125 g
5/8 cup
0.631
10.1
150 g
3/4 cup
0.758
12.1
200 g
1 cup
1.01
16.2
250 g
1 1/4 cup
1.263
20.2
300 g
1 1/2 cup
1.515
24.2
400 g
2 cup
2.02
32.3
500 g
2 1/2 cup
2.525
40.4
1000 g
5 cup
5.051
80.8
Cups to grams
Volume
Grams
Ounces
1/4 cup
50 g
1.75 oz
1/3 cup
66 g
2.33 oz
1/2 cup
99 g
3.49 oz
2/3 cup
132 g
4.66 oz
3/4 cup
148 g
5.24 oz
1 cup
198 g
6.98 oz
1 tablespoon
12 g
0.44 oz
1 teaspoon
4 g
0.15 oz
Source: King Arthur Baking, Ingredient Weight Chart. Kitchen measures are rounded to the nearest common cup fraction.
