Cup (US Customary) to Cup (Imperial) Conversion Result

Cup (US Customary): the U.S. customary cup is a unit of volume widely used in cooking, baking, and everyday measurements in the United States. It is slightly smaller then U.S. legal cup and is equal to 236.588 milliliters.

Some Considerations:

• In American recipes: Always assume the cup measurement refers to the U.S. customary cup unless stated otherwise.
• For international recipes: Check if the recipe specifies metric cups or imperial cups, as these are common outside the U.S.

Cup (Imperial): is a unit of volume used in the imperial system, which was historically used in the United Kingdom and its former colonies. Though it has been largely replaced by the metric system in most of these countries, the imperial cup is still recognized and sometimes appears in older recipes and documents.

1 imperial cup = 284.131 milliliters (mL), which makes it larger than both the U.S. customary cup (236.588 mL) and the metric cup (250 mL).