Convert Cup (US) (cup) to Teaspoon (US) (tsp)
Category: Volume
1 cup = 48 tsp
High-precision rounding: 6 decimals
How to convert cup (us) to teaspoon (us)
We convert by pivoting through the SI base unit for Volume and applying exact factors where applicable.
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Quick conversion table
Handy values for Cup (US) → Teaspoon (US). Click a value to open that exact result.
Conversion formula
Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Common mistakes
- Mixing US gallons (3.785 L) with Imperial gallons (4.546 L).
- Assuming kitchen ‘cup’ equals the same volume in every country.
Unit facts
- Cup (US): A US cup is ≈236.588 mL. Recipe ‘cups’ vary by country—convert carefully.
- Teaspoon (US): A US teaspoon is ≈4.9289 mL; differs by region.
About Volume
Volume measures the space a substance occupies. SI uses cubic meters and liters; customary units like gallons, quarts, and pints persist in recipes, fuel, and containers. Accurate volume work often requires temperature and density considerations (e.g., for fuels).
About Cup (US)
Cup (US)
≈ 236.588 mL. Informal cooking measure; exact value may vary by country and cookbook conventions.
History: Culinary traditions standardized local cup sizes; US customary cup is common in recipes and nutrition.
About Teaspoon (US)
Teaspoon (US)
≈ 4.929 mL. Useful for small volumes and medication dosing. In lab contexts replaced by mL for clarity.
History: Evolved from household spoons; modern practice fixes approximate metric equivalents.