How do I convert Tablespoon (US) to Teaspoon (US)?

1 tbsp equals 3 tsp using SI-based conversion and precise factors.

What is the formula to convert Tablespoon (US) to Teaspoon (US)?

This is a linear unit conversion using a constant factor between units.

How can I share a direct tbsp to tsp result?

Use the shareable URL: https://measurecalc.com/convert/tablespoon-to-teaspoon

Convert Tablespoon (US) to Teaspoon (US)

Q: Is Tablespoon (US) to Teaspoon (US) conversion exact?

Yes, it uses exact definitions or standardized constants (e.g., 1 in = 25.4 mm).

Category: Volume

Value From To Precision

3 tsp

1 tbsp = 3 tsp

High-precision rounding: 6 decimals

How to convert tablespoon (us) to teaspoon (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 Tablespoon (US) to Teaspoon (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.

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Quick conversion table

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

Tablespoon (US)	Teaspoon (US)
1	3
0.5	1.5
2.5	7.5
10	30

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

Tablespoon (US): A US tablespoon is ≈14.7868 mL; differs in other countries.
Teaspoon (US): A US teaspoon is ≈4.9289 mL; differs by region.

About Tablespoon (US)

Tablespoon (US)

≈ 14.787 mL. Used for cooking, dosing syrups, and nutrition serving sizes.

History: Kitchen measures differ internationally; US tablespoon is larger than some Commonwealth equivalents.

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.

Frequently asked questions

How many Teaspoon (US) are in one Tablespoon (US)?

1 Tablespoon (US) equals 3 Teaspoon (US).

Is Tablespoon (US) to Teaspoon (US) conversion exact?

Many unit conversions are exact by definition, while others use standardized conversion constants.

What is the fastest way to convert Tablespoon (US) to Teaspoon (US)?

Enter a value in Tablespoon (US), choose Teaspoon (US) as the target unit, and the calculator will instantly return the result.

Convert Tablespoon (US) to other units

tbsp → bbl Barrel (oil, bbl)
tbsp → ft3 Cubic foot (ft³)
tbsp → in3 Cubic inch (in³)
tbsp → m3 Cubic meter (m³)
tbsp → cup Cup (US)
tbsp → gal_uk Imperial gallon (gal UK)

Convert other units to Teaspoon (US)

bbl → tsp Barrel (oil, bbl)
ft3 → tsp Cubic foot (ft³)
in3 → tsp Cubic inch (in³)
m3 → tsp Cubic meter (m³)
cup → tsp Cup (US)
gal_uk → tsp Imperial gallon (gal UK)