Tablespoon to Teaspoon Converter
One Tablespoon equals 3 Teaspoon (1 tbsp = 3 tsp). Multiply a Tablespoon value by 3 to get the equivalent in Teaspoon. Use the calculator above for instant results, or follow the formula, worked examples, and reference table below.
Formula
tsp = tbsp × 3
Multiply the Tablespoon value by 3 to get the equivalent value in Teaspoon.
Example Conversions
1 Tablespoon (tbsp)
3 Teaspoon (tsp)
5 Tablespoon (tbsp)
15 Teaspoon (tsp)
10 Tablespoon (tbsp)
30 Teaspoon (tsp)
25 Tablespoon (tbsp)
75 Teaspoon (tsp)
100 Tablespoon (tbsp)
300 Teaspoon (tsp)
Conversion Table
| Tablespoon (tbsp) | Teaspoon (tsp) |
|---|---|
| 0.1 | 0.3 |
| 0.5 | 1.5 |
| 1 | 3 |
| 2 | 6 |
| 5 | 15 |
| 10 | 30 |
| 25 | 75 |
| 50 | 150 |
| 100 | 300 |
| 250 | 750 |
| 500 | 1500 |
| 1000 | 3000 |
How to Convert Manually
Use these steps to convert Tablespoon values to Teaspoon without the calculator.
- Write down the value in Tablespoon (tbsp) that you want to convert.
- Multiply that value by 3.
- For example, 10 Tablespoon × 3 = 30 Teaspoon.
- Label the result as Teaspoon (tsp).
Relative Size Comparison
This chart shows the visual difference in size between exactly one Tablespoon and one Teaspoon.
About Tablespoon and Teaspoon
The tablespoon is three teaspoons, about 14.79 milliliters in US recipe measure. Cooking and nutrition labels use it for oils, sauces, and medicine in the US. The teaspoon is about 4.93 milliliters in US recipe measure, one third of a tablespoon. Baking ingredients like spices, salt, and leavening are specified in teaspoons. One Tablespoon equals 3 Teaspoon (1 tbsp = 3 tsp). Tablespoon to Teaspoon conversion comes up most often in recipe oil and sauce quantities and in nutrition serving sizes, typically when figures need restating for baking spices and leavening.
Precision and Rounding: US and imperial volume units share names but differ in size (an imperial gallon is about 20% larger than a US gallon), so confirm which system a figure uses before converting. Kitchen work tolerates rounding to the nearest milliliter or quarter-teaspoon; fuel, chemistry, and brewing need three or more decimal places.
Conversion factors per NIST Special Publication 811 and the BIPM SI Brochure (9th edition) (reference).
Worked Example
15 Tablespoon equals 45 Teaspoon.
15 tbsp × 3 = 45 tsp
FAQ
How do I convert Tablespoon to Teaspoon?
Multiply the Tablespoon value by 3 to get the equivalent value in Teaspoon.
What is the formula for Tablespoon to Teaspoon?
The formula is tsp = tbsp × 3.
How many Teaspoon are in 1 Tablespoon?
1 Tablespoon equals 3 Teaspoon.
Can I convert Teaspoon back to Tablespoon?
Yes. 1 Teaspoon equals 0.3333333333 Tablespoon, and the related converter can reverse the calculation.
What are common names for Tablespoon and Teaspoon?
Tablespoon is shown as tbsp and may also be searched as tablespoons, tbs. Teaspoon is shown as tsp and may also be searched as teaspoons.
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