A metric teaspoon is 5 milliliters.
Metric teaspoons to Metric tablespoons Converter — metric tsp to metric tbsp
Convert Metric teaspoon (metric tsp) to Metric tablespoon (metric tbsp) using the exact conversion factor (1 metric teaspoon = 0.3333333333 metric tablespoon). See the formula, worked examples, and conversion table.
Metric teaspoons to Metric tablespoons 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 tablespoon is 15 milliliters.
Result = input x 5e-6 / 1.5e-5.
Volume units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Metric teaspoons to Metric tablespoons
Metric teaspoon and Metric tablespoon 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 teaspoon is 5 milliliters, and a metric tablespoon is 15 milliliters.
Formula
metric tablespoons = metric teaspoons × 0.333333333333
This factor comes from each unit's defined relationship to the category's base unit: 1 metric teaspoon equals 0.000005 base units, and 1 metric tablespoon equals 0.000015 base units, so dividing one by the other gives the direct metric teaspoon-to-metric tablespoon factor of 0.333333333333.
Simple example
1 metric tsp × 0.3333333333 = 0.3333333333 metric tbsp
1 metric teaspoon = 0.3333333333 metric tablespoons.
Real-world example
2 metric tsp × 0.3333333333 = 0.6666666667 metric tbsp
2 metric teaspoons = 0.6666666667 metric tablespoons.
Conversion table
| Metric teaspoon (metric tsp) | Metric tablespoon (metric tbsp) |
|---|---|
| 0.25 metric tsp | 0.0833333333 metric tbsp |
| 0.5 metric tsp | 0.1666666667 metric tbsp |
| 1 metric tsp | 0.3333333333 metric tbsp |
| 2 metric tsp | 0.6666666667 metric tbsp |
| 4 metric tsp | 1.333333333 metric tbsp |
| 8 metric tsp | 2.666666667 metric tbsp |
Reverse conversion: Metric tablespoon to Metric teaspoon
0.3333333333 metric tbsp × 3 = 0.9999999999 metric tsp
0.3333333333 metric tablespoons = 0.9999999999 metric teaspoons.
metric teaspoons = metric tablespoons × 3
For a page dedicated to this direction, see Metric tablespoon to Metric teaspoon.
Understanding the Metric teaspoon (metric tsp)
A metric teaspoon is 5 milliliters.
Understanding the Metric tablespoon (metric tbsp)
A metric tablespoon is 15 milliliters.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many metric tablespoons are in 1 metric teaspoon?
1 metric teaspoon equals 0.3333333333 metric tablespoons, using the exact defined conversion factor rather than an estimate.
How do I convert metric teaspoon to metric tablespoon?
Multiply the metric teaspoon value by 0.3333333333. The converter above does this instantly to whatever precision you set.
How do I convert metric tablespoon back to metric teaspoon?
Use the reverse factor: 1 metric tablespoon equals 3 metric teaspoons. You can also use the swap control in the converter above to flip the direction instantly.
What is a metric teaspoon?
Metric teaspoon (metric tsp) is a unit of cooking.
What is a metric tablespoon?
Metric tablespoon (metric tbsp) is a unit of cooking.
Is the metric teaspoon to metric tablespoon conversion exact?
Yes. Both metric teaspoon and metric tablespoon are defined by fixed standards rather than physical artifacts, so the factor of 0.3333333333 used above is exact to as many digits as you choose to display.