How Many Ounces Are in a Cup of Butter?

How many ounces are in 1 cup of butter?

1 cup of butter weighs 8 ounces by weight, which equals 1/2 pound or 227 grams. This is one of the cleanest weight conversions in baking because butter density is consistent across brands and salt levels. Two sticks of US butter (each 4 oz) make 1 cup, totaling 8 oz. A pound of butter (4 sticks) equals 2 cups. The 8 oz per cup figure is also the weight of European butter blocks (slightly less than 250 g blocks, which weigh 8.8 oz). For other ingredients, weight per cup varies (flour at 4.25 oz, sugar at 7 oz), but butter's 8 oz per cup is constant. This consistency makes butter the easiest baking ingredient to measure across volume and weight systems.

How does butter ounce weight scale through sticks and tablespoons?

For US butter measurements: 1 tablespoon is 0.5 oz (14 g), 4 tablespoons (1/2 stick or 1/4 cup) is 2 oz (57 g), 8 tablespoons (1 stick or 1/2 cup) is 4 oz (113 g), 16 tablespoons (2 sticks or 1 cup) is 8 oz (227 g), and 32 tablespoons (4 sticks or 2 cups or 1 pound) is 16 oz (454 g). Going larger: 2 pounds equals 4 cups (32 oz), and 5 pounds equals 10 cups (80 oz). The 4 oz per stick figure is foundational to American butter packaging; each stick wrapper is marked at tablespoon intervals (each tablespoon being 1/2 oz), which makes precise partial-stick measurement easy without unwrapping the entire stick.

How do fluid ounces and weight ounces compare for butter?

Solid butter is unique in that fluid ounces and weight ounces give nearly identical numbers: 1 cup of solid butter occupies 8 fluid ounces (volume) and weighs 8 ounces (weight). This near-equivalence comes from butter's density (about 0.96 g per ml) being close to water (1 g per ml). For melted butter, the volume increases slightly (about 5-7 percent) while the weight stays the same. So 1 cup of solid butter (227 g) melts to about 1.07 cups (still 227 g). For recipes that specify 'melted butter' by volume, melt the butter first and then measure. For recipes that specify 'butter, melted,' measure the solid butter first and then melt; this matters because the volume changes with phase even though weight does not.

When does the butter cup-to-ounce conversion matter most?

Baking is the main case. Cookie, cake, and pastry recipes often list butter in cup or stick amounts that convert easily through the 8 oz per cup, 4 oz per stick, and 2 sticks per cup relationships. International recipe conversion uses grams (227 g per cup); European recipes list butter by weight. Substituting butter between salted and unsalted varieties uses ounce-for-ounce or cup-for-cup substitution since the salt content is small (about 1.5 percent by weight). Recipe scaling benefits from the clean math: halving a 1-cup butter amount gives 1/2 cup (1 stick, 4 oz); quartering gives 1/4 cup (2 oz, 4 tablespoons). For everyday baking, knowing 1 cup butter equals 2 sticks equals 8 oz is the foundational fact that handles most situations.