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Standard unsalted butter. One US cup equals 2 sticks or 227g. Volume measurement is reliable since butter is dense and uniform.
1 cup =
227
grams
All values calculated using the actual density of Butter (0.95 g/ml).
¼ cup
57g
2.0 oz
⅓ cup
76g
2.7 oz
½ cup
114g
4.0 oz
⅔ cup
151g
5.3 oz
¾ cup
170g
6.0 oz
1 cup
227g
8.0 oz
1½ cups
341g
12.0 oz
2 cups
454g
16.0 oz
1 tablespoon
14g
1 teaspoon
5g
½ tablespoon
7g
Why density matters
Butter has a density of 0.95 g/ml. Compare that to water at 1.0 g/ml — a lighter ingredient will give a lower gram count per cup. Generic converters that assume 240g per cup for everything would give you 13g more than the actual weight — which can ruin precision bakes.
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