also called Dairy butter

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About
Butter is a churned dairy fat that weighs about 7.6 ounces (215 g) per standard US cup.
With a density of roughly 0.91 grams per milliliter, butter is lighter than water and will float once melted. A full US cup holds about 7.6 ounces (215 g), making it slightly lighter by volume than granulated sugar or whole milk. Because churned butter is a solid emulsion of fat and water, it packs into containers without leaving large air pockets.
From Wikipedia
Butter is a dairy product made from the fat and protein components of churned cream. It is a semi-solid emulsion at room temperature, consisting of approximately 81% butterfat.
Read more on Wikipedia →Text from Wikipedia’s “Butter” article, CC BY-SA 4.0.
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One cup weighs
7.59 oz (215 g)
Quick answer
One US cup of butter weighs about 7.6 ounces (215 g), which equals two standard American sticks. That makes it slightly lighter than a cup of water, which weighs around 8.3 ounces (237 g).
Typical figures, the same ones every comparison on the site uses; real ones vary.
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