A metric tablespoon is 15 milliliters.
Metric tablespoons to Metric teaspoons Converter — metric tbsp to metric tsp
Convert Metric tablespoon (metric tbsp) to Metric teaspoon (metric tsp) using the exact conversion factor (1 metric tablespoon = 3 metric teaspoon). See the formula, worked examples, and conversion table.
Metric tablespoons to Metric teaspoons converter
Converter
Cooking Converter
Convert cooking volume and mass units used in recipes and nutrition workflows.
Context values
Some unit families need one extra value for a physically accurate result.
A metric teaspoon is 5 milliliters.
Result = input x 1.5e-5 / 5e-6.
Volume units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Metric tablespoons to Metric teaspoons
Metric tablespoon and Metric teaspoon both show up in recipes, and converting between them matters whenever a recipe from one country's cookbook needs to be followed with another country's measuring tools. Specifically: A metric tablespoon is 15 milliliters, and a metric teaspoon is 5 milliliters.
Formula
metric teaspoons = metric tablespoons × 3
This factor comes from each unit's defined relationship to the category's base unit: 1 metric tablespoon equals 0.000015 base units, and 1 metric teaspoon equals 0.000005 base units, so dividing one by the other gives the direct metric tablespoon-to-metric teaspoon factor of 3.
Simple example
1 metric tbsp × 3 = 3 metric tsp
1 metric tablespoon = 3 metric teaspoons.
Real-world example
2 metric tbsp × 3 = 6 metric tsp
2 metric tablespoons = 6 metric teaspoons.
Conversion table
| Metric tablespoon (metric tbsp) | Metric teaspoon (metric tsp) |
|---|---|
| 0.25 metric tbsp | 0.75 metric tsp |
| 0.5 metric tbsp | 1.5 metric tsp |
| 1 metric tbsp | 3 metric tsp |
| 2 metric tbsp | 6 metric tsp |
| 4 metric tbsp | 12 metric tsp |
| 8 metric tbsp | 24 metric tsp |
Reverse conversion: Metric teaspoon to Metric tablespoon
3 metric tsp × 0.3333333333 = 1 metric tbsp
3 metric teaspoons = 1 metric tablespoons.
metric tablespoons = metric teaspoons × 0.333333333333
For a page dedicated to this direction, see Metric teaspoon to Metric tablespoon.
Understanding the Metric tablespoon (metric tbsp)
A metric tablespoon is 15 milliliters.
Understanding the Metric teaspoon (metric tsp)
A metric teaspoon is 5 milliliters.
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Frequently asked questions
How many metric teaspoons are in 1 metric tablespoon?
1 metric tablespoon equals 3 metric teaspoons, using the exact defined conversion factor rather than an estimate.
How do I convert metric tablespoon to metric teaspoon?
Multiply the metric tablespoon value by 3. The converter above does this instantly to whatever precision you set.
How do I convert metric teaspoon back to metric tablespoon?
Use the reverse factor: 1 metric teaspoon equals 0.3333333333 metric tablespoons. You can also use the swap control in the converter above to flip the direction instantly.
What is a metric tablespoon?
Metric tablespoon (metric tbsp) is a unit of cooking.
What is a metric teaspoon?
Metric teaspoon (metric tsp) is a unit of cooking.
Is the metric tablespoon to metric teaspoon conversion exact?
Yes. Both metric tablespoon and metric teaspoon are defined by fixed standards rather than physical artifacts, so the factor of 3 used above is exact to as many digits as you choose to display.