3 tsp to tbsp
- US teaspoons (tsp)
- 3 tsp
- US tablespoons
- 1 tbsp
Checked against: Exact-fraction computation from the legal unit definitions
Convert US teaspoons to US tablespoons (tsp to tbsp) with the exact factor, a conversion chart and worked steps.
By AdminDrafted with AI writing toolsUpdated Checked examples: 3
3 tsp is about 1 tbsp. In the other direction, 1 tbsp ≈ 3 tsp.
| US teaspoons | US tablespoons |
|---|---|
| 1 | 0.3333 |
| 1.5 | 0.5 |
| 2 | 0.6667 |
| 3 | 1 |
| 4 | 1.3333 |
| 5 | 1.6667 |
| 6 | 2 |
| 9 | 3 |
| 12 | 4 |
Rounded here for display; the calculation uses 50 significant digits.
To convert US teaspoons to US tablespoons, multiply by 0.3333333333; to convert back, multiply by 3. For example, 3 tsp is about 1 tbsp. Displayed factors and results may be rounded.
Teaspoon quantities are useful when a recipe calls for a small amount and only a larger measure is available. Enter fractions precisely and check the US measuring-spoon convention. Ordinary cutlery is not a calibrated measuring tool.
US teaspoon: 1 US tsp = 1/3 US tbsp = 4.92892159375 mL. These values are exact.
Both units are defined exactly. Calculations use 50 significant digits and round only for display.
Divide US teaspoons by 3: tbsp = tsp ÷ 3. So 6 tsp = 2 tbsp and 1 tsp = ⅓ tbsp. Use it when a scaled-up recipe piles up teaspoons. The ratio holds for US and 15 mL metric spoons; an Australian 20 mL tablespoon holds 4 teaspoons.
A result such as 2.667 tbsp can't be measured with spoons. Divide by 3 instead and keep the remainder in teaspoons:
Only multiples of 3 come out as whole tablespoons. Any remainder of 1 or 2 stays in teaspoons.
| US teaspoons | US tablespoons, rounded |
|---|---|
| 1 | 0.333333 |
| 1.5 | 0.500000 |
| 2 | 0.666667 |
| 3 | 1.000000 |
| 6 | 2.000000 |
| 9 | 3.000000 |
The repeating decimals are exact thirds: 0.333333 is ⅓ tbsp, one teaspoon, and 0.666667 is ⅔ tbsp, two teaspoons.
A US tablespoon is exactly 3 US teaspoons: 14.78676478125 mL against 4.92892159375 mL (NIST Handbook 44, Appendix C). Metric 15 mL and 5 mL spoons keep the same ratio.
Australian recipes pair a 20 mL tablespoon with 5 mL teaspoons (NSW cooking-measure reference). There, 8 tsp is exactly 2 tbsp, where US spoons give 2⅔ tbsp.
The tablespoons to teaspoons converter goes the other way, and the teaspoons to mL converter gives milliliters. For grams of an ingredient, use the cooking converter.
Checked against: Exact-fraction computation from the legal unit definitions
Checked against: Exact-fraction computation from the legal unit definitions
Checked against: Exact-fraction computation from the legal unit definitions
1 tsp is about 0.3333333333 tbsp. US teaspoon: 1 US tsp = 1/3 US tbsp = 4.92892159375 mL. These values are exact.
Multiply by 0.3333333333: 3 tsp × 0.3333333333 ≈ 1 tbsp. To convert back, divide by the same factor. The factor shown may be rounded.
Multiply by 0.33. This is 1% below the exact factor (about 0.3333333333), so 3 tsp comes out as 0.99 tbsp instead of 1 tbsp.
This calculator includes 3 worked examples with independently sourced answers. They run in the test suite, and you can run them here too.