Convert Teaspoon (US) to Cup (US)

Category: Volume

0.208333 cup

10 tsp = 0.208333 cup

High-precision rounding: 6 decimals


How to convert teaspoon (us) to cup (us)

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).

This converter calculates Teaspoon (US) to Cup (US) values by using the correct conversion rule for the Volume category. For linear units, standardized factors are used. For temperature, the calculator applies the proper formula with offsets.

Share this conversion: /convert/teaspoon-to-cup/10

Quick conversion table

Handy values for Teaspoon (US) to Cup (US). Click a value to open that exact result.

Teaspoon (US) Cup (US)
10 0.208333
0.5 0.010417
2.5 0.052083

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

  • Teaspoon (US): A US teaspoon is ≈4.9289 mL; differs by region.
  • Cup (US): A US cup is ≈236.588 mL. Recipe ‘cups’ vary by country—convert carefully.

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.

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.

Frequently asked questions

How many Cup (US) are in one Teaspoon (US)?
1 Teaspoon (US) equals 0.020833 Cup (US).
Is Teaspoon (US) to Cup (US) conversion exact?
Many unit conversions are exact by definition, while others use standardized conversion constants.
What is the fastest way to convert Teaspoon (US) to Cup (US)?
Enter a value in Teaspoon (US), choose Cup (US) as the target unit, and the calculator will instantly return the result.

Convert Teaspoon (US) to other units

Convert other units to Cup (US)