Cups (US customary) to Teaspoons (US) Converter

Convert cups (us customary) to teaspoons (us) for cooking measurements.

Common cooking measurement units

US customary cup (cup)

Definition: A US customary cup is a volume unit equal to about 236.588 milliliters.

History/origin: The cup was standardized in the United States as cookbooks and measuring sets replaced rough household approximations.

Current use: US cups are central to American recipes for liquids, flour, sugar, and many household ingredients.

US teaspoon (tsp)

Definition: The US teaspoon is a small recipe volume measure. In the US customary system, 1 tsp is approximately 4.93 mL.

History/origin: What began as a practical spoonful became a fixed cookbook measure so cooks could repeat small additions without relying on spoon shape.

Current use: Tsp is used for leaveners, extracts, seasonings, yeast, citrus juice, hot sauce, medicine-style kitchen doses, and other compact recipe additions.

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