1 US tablespoon = 3 US teaspoons
Convert US tablespoons to US teaspoons.
Both directions on one page — swap the units and the whole thing runs backwards.
Type a value, or “5cm to in”
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The formula
tsp (US) = tbsp (US) × 3
Worked through with a real value: 10 US tablespoons = 30 US teaspoons.
Going the other way: tbsp (US) = tsp (US) × 0.333333, so 1 US teaspoon = 0.333333 US tablespoons.
What each unit is
- US tablespoon tbsp (US)
- 14.79 millilitres. Larger than a metric tablespoon. Three teaspoons equal one tablespoon in US recipes.
- US teaspoon tsp (US)
- 4.93 millilitres. One third of a US tablespoon. Used for small precise amounts in American recipes.
Where these come from
- 1 US tablespoon = 14.78676478125 milliliters
- 1 US teaspoon = 4.92892159375 milliliters
Every other number on this page is computed from those, and each category is pinned to conversions worked out by hand from the units' primary definitions before it ships.
Conversion tables
| US tablespoons (tbsp (US)) | US teaspoons (tsp (US)) |
|---|---|
| 1 | 3 |
| 2 | 6 |
| 3 | 9 |
| 4 | 12 |
| 5 | 15 |
| 6 | 18 |
| 7 | 21 |
| 8 | 24 |
| 9 | 27 |
| 10 | 30 |
| 20 | 60 |
| 25 | 75 |
| 50 | 150 |
| 75 | 225 |
| 100 | 300 |
| US teaspoons (tsp (US)) | US tablespoons (tbsp (US)) |
|---|---|
| 1 | 0.333333 |
| 2 | 0.666667 |
| 3 | 1 |
| 4 | 1.33333 |
| 5 | 1.66667 |
| 6 | 2 |
| 7 | 2.33333 |
| 8 | 2.66667 |
| 9 | 3 |
| 10 | 3.33333 |
| 20 | 6.66667 |
| 25 | 8.33333 |
| 50 | 16.6667 |
| 75 | 25 |
| 100 | 33.3333 |
Questions
How many US teaspoons are in a US tablespoon?
1 US tablespoon = 3 US teaspoons.
How do I convert US tablespoons to US teaspoons?
Use tsp (US) = tbsp (US) × 3. For example, 10 US tablespoons = 30 US teaspoons.
How many US tablespoons are in one US teaspoon?
1 US teaspoon = 0.333333 US tablespoons.
What is 10 US tablespoons in US teaspoons?
10 US tablespoons = 30 US teaspoons.
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