Tablespoons (US) to Teaspoons (US) Converter

1 tbsp equals 3 tsp, and 1 tsp equals 0.33333333 tbsp. Enter a value in either box to convert tablespoons (us) to teaspoons (us) and back. Formula: cubic meters = value x unit factor (1 US gal = 231 in3 = 0.003785411784 m3 exactly; 1 UK gal = 4.54609 L).

· CalcFlow Editorial

1 tbsp = 3 tsp

Results shown are estimates for informational purposes only. Nothing on CalcFlow is financial, tax, legal, or medical advice. Always consult a qualified professional before making important decisions.

Tablespoons (US) to Teaspoons (US) Conversion Table

Tablespoons (US)Teaspoons (US)
1 tbsp3 tsp
2 tbsp6 tsp
5 tbsp15 tsp
10 tbsp30 tsp
20 tbsp60 tsp
50 tbsp150 tsp
100 tbsp300 tsp
500 tbsp1,500 tsp
1,000 tbsp3,000 tsp

Teaspoons (US) to Tablespoons (US) Conversion Table

Teaspoons (US)Tablespoons (US)
1 tsp0.33333333 tbsp
2 tsp0.66666667 tbsp
5 tsp1.6666667 tbsp
10 tsp3.3333333 tbsp
20 tsp6.6666667 tbsp
50 tsp16.666667 tbsp
100 tsp33.333333 tbsp
500 tsp166.66667 tbsp
1,000 tsp333.33333 tbsp

Worked example: 10 tbsp = 30 tsp. 3 US gallons is 3 x 3.785411784 = 11.356 liters. A 2 liter bottle holds 2 / 0.2365882365 = 8.45 US cups.

Need other units? Open the full Volume Converter.

Formula

cubic meters = value x unit factor (1 US gal = 231 in3 = 0.003785411784 m3 exactly; 1 UK gal = 4.54609 L)

Understanding Volume Conversion

Volume units come in two families that share names: US customary (gallon, quart, pint, cup, fluid ounce) and British imperial (the same names with different sizes). The US gallon is defined as exactly 231 cubic inches, or 3.785411784 liters. The imperial gallon is exactly 4.54609 liters, about 20 percent larger. Cooking measures such as teaspoons and tablespoons are derived from the US gallon here.

Tips and Best Practices

  • 1A US gallon is about 3.785 liters; an imperial gallon is about 4.546 liters. Check which one a recipe or fuel figure means.
  • 2One US cup is about 236.6 mL, though nutrition labels round a cup to 240 mL.
  • 3For liquids in cooking, 3 teaspoons make 1 tablespoon and 16 tablespoons make 1 US cup.

Real-World Example

3 US gallons is 3 x 3.785411784 = 11.356 liters. A 2 liter bottle holds 2 / 0.2365882365 = 8.45 US cups.

Common Mistakes to Avoid

  • Using US gallons for a UK recipe or car fuel figure, which can be off by about 20 percent.
  • Assuming a fluid ounce and an ounce of weight are the same; they measure different things.
  • Mixing the US pint (473 mL) with the imperial pint (568 mL).

How to Use

  1. Type a number in the Tablespoons (US) box.
  2. The Teaspoons (US) result appears instantly; you can also edit the Teaspoons (US) box to convert backwards.
  3. Use the swap button to reverse the direction and Copy result to copy the answer.

Frequently Asked Questions

Q

How many teaspoons (us) are in 1 tbsp?

1 tbsp equals 3 tsp.
Q

How many tablespoons (us) are in 1 tsp?

1 tsp equals 0.33333333 tbsp.
Q

What is the formula to convert tablespoons (us) to teaspoons (us)?

cubic meters = value x unit factor (1 US gal = 231 in3 = 0.003785411784 m3 exactly; 1 UK gal = 4.54609 L).
Q

How many milliliters are in a cup?

A US customary cup is 236.5882365 mL. Many nutrition labels use a rounded 240 mL cup.

Sources: NIST Handbook 44 Appendix B (US gallon = 231 cubic inches; tablespoon, teaspoon, cup, pint, quart); UK Weights and Measures Act (imperial gallon = 4.54609 L); 42-gallon petroleum barrel.