Cups (US legal) to Ounces (weight) Converter

Convert cups (us legal) to ounces (weight) for cooking measurements.

Common cooking measurement units

US legal cup (cup)

Definition: A US legal cup is defined as exactly 240 milliliters.

History/origin: The legal cup exists mainly for US food labeling and regulatory consistency rather than traditional home cooking.

Current use: US legal cups appear on nutrition labels and in some official food packaging contexts.

Ounce (oz)

Definition: The ounce is a customary weight unit used for food portions and ingredients. One avoirdupois ounce converts to approximately 28.35 g.

History/origin: Ounce-based weighing passed from older European trade systems into English and American kitchens, where it stayed common in recipes and retail packaging.

Current use: Oz is often printed on snack bags, cheese blocks, chocolate bars, meat portions, postal-style kitchen scales, and American baking or meal-prep recipes.

Related articles