US Tablespoons to Teaspoons
Convert us tablespoons to us teaspoons instantly. Change the amount or check the formula below.
More actions
Multiply US tbsp by 3 to get US tsp.
Same value in other units View equivalents
| Unit | Equivalent value |
|---|---|
| Milliliters (mL) | 73.933824 mL |
| Liters (L) | 0.073934 L |
| US fluid ounces (US fl oz) | 2.5 US fl oz |
| UK (imperial) fluid ounces (UK fl oz) | 2.602107 UK fl oz |
| US gallons (US gal) | 0.019531 US gal |
How to convert US tbsp to US tsp
Multiply US tbsp by 3 to get US tsp.
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Quick reference table
Choose a value below to try it in the live converter.
| US tablespoons | US teaspoons |
|---|---|
| 3 US tsp | |
| 6 US tsp | |
| 15 US tsp | |
| 30 US tsp | |
| 75 US tsp | |
| 150 US tsp | |
| 300 US tsp |
Results use the volume dimension. Choose compatible units only; the precision selector changes display rounding, not the underlying factor.
Verify US tbsp to US tsp
Using the stated definitions, 1 US tbsp = 3 US tsp and 10 US tbsp = 30 US tsp. The live converter accepts your own value; the table provides additional check points.
Conversion method
Multiply US tbsp by 3 to get US tsp.
US customary versus imperial volume
A US fluid ounce measures volume, not the mass ounce. A US gallon is 3.785411784 liters; an imperial gallon is 4.54609 liters. Recipes and container labels must identify which convention is intended.
A US cup is 1/16 of a US liquid gallon, while a US tablespoon is one-half US fluid ounce. Volume cannot be converted to mass without a material density.
Reference: NIST conversion factors. Calculation and display rounding are separate. See how we calculate.
US tablespoons, nutrition labels, and Australian tablespoons
This converter uses US customary tablespoons and teaspoons: 1 US tbsp = 3 US tsp. Kitchen recipes and US nutrition labels can use slightly different milliliter sizes.
| Convention | 1 tablespoon in mL | Teaspoons per tablespoon | Important distinction |
|---|---|---|---|
| US customary tbsp | 14.786764781 | 3 | This live converter; 1 US tsp ≈ 4.928921594 mL |
| US nutrition-label tbsp | 15 | 3 | FDA label: 1 teaspoon = 5 mL |
| Australian tablespoon | 20 | 4 | With 5 mL metric teaspoons |
Do not silently replace US customary tablespoons with metric or Australian spoons. A tablespoon is volume, not ingredient mass. US spoon definitions · FDA food-label standards.
Methodology: fixed SI definitions and standards-based factors. For safety-critical use, verify the required industry specification. Check definitions, conventions and sources.