cup (US customary) to imperial cup converter

Convert cup (US customary) to imperial cup in the Cooking measures family. See a sample calculation, unit definitions, and the interactive converter.

Example conversion: 1 cup

0.8326741846 imperial cup

This example is calculated from the same unit registry used by the interactive converter.

Formula and unit definitions

Convert common cooking volume measures. Ingredient mass needs a recipe-specific density.

target value = source value × source factor ÷ target factor

Source unit: cup (US customary) (cup), factor 236.5882365, offset 0.

Target unit: imperial cup (cup-uk), factor 284.130625, offset 0.

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Important note

The calculation is performed locally from the listed unit definitions. Display results are rounded for readability; high-precision and regulated work should use the governing standard and appropriate significant figures.

For high-precision, regulated or safety-critical use, check the underlying standard and its required precision. Historical and approximate units are identified in their names or family descriptions.

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