A metric teaspoon is 5 milliliters.
Metric teaspoons to Tablespoons Converter — metric tsp to tbsp
Convert Metric teaspoon (metric tsp) to Tablespoon (tbsp) using the exact conversion factor (1 metric teaspoon = 0.338140227 tablespoon). See the formula, worked examples, conversion table, and common uses.
Metric teaspoons to Tablespoons converter
Converter
Volume Converter
Convert metric, US customary, imperial, cooking, dry, and industrial volume units.
Context values
Some unit families need one extra value for a physically accurate result.
A US tablespoon is half a US fluid ounce.
Result = input x 5e-6 / 1.47867648e-5.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Metric teaspoons to Tablespoons
Metric teaspoon and Tablespoon appear side by side at fuel pumps and on beverage labels, since the US measures liquids in gallons while most of the world uses liters. Specifically: A metric teaspoon is 5 milliliters, and a US tablespoon is half a US fluid ounce.
Formula
tablespoons = metric teaspoons × 0.338140227018
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 tablespoon equals 0.0000147867647813 base units, so dividing one by the other gives the direct metric teaspoon-to-tablespoon factor of 0.338140227018.
Simple example
1 metric tsp × 0.338140227 = 0.338140227 tbsp
1 metric teaspoon = 0.338140227 tablespoons.
Real-world example
10 metric tsp × 0.338140227 = 3.38140227 tbsp
10 metric teaspoons = 3.38140227 tablespoons.
Conversion table
| Metric teaspoon (metric tsp) | Tablespoon (tbsp) |
|---|---|
| 1 metric tsp | 0.338140227 tbsp |
| 5 metric tsp | 1.690701135 tbsp |
| 10 metric tsp | 3.38140227 tbsp |
| 25 metric tsp | 8.453505675 tbsp |
| 50 metric tsp | 16.90701135 tbsp |
| 100 metric tsp | 33.8140227 tbsp |
Reverse conversion: Tablespoon to Metric teaspoon
0.338140227 tbsp × 2.957352956 = 0.9999999999 metric tsp
0.338140227 tablespoons = 0.9999999999 metric teaspoons.
metric teaspoons = tablespoons × 2.95735295625
For a page dedicated to this direction, see Tablespoon to Metric teaspoon.
Understanding the Metric teaspoon (metric tsp)
A metric teaspoon is 5 milliliters.
Understanding the Tablespoon
Tablespoon (tbsp) measures volume. The US tablespoon is exactly 14.78676478125 milliliters — 3 US teaspoons, or 1/16 of a US cup. It is classified as a US customary unit.
Where it's used: United States (cooking and recipe measurement)
Uses of the Tablespoon today
- US recipe and cooking measurement
- Nutrition labeling serving sizes in the US
- Medication dosing instructions in the US
Tablespoon — sources
- NIST Handbook 44, Appendix C — General tables of units including the US tablespoon definition.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many tablespoons are in 1 metric teaspoon?
1 metric teaspoon equals 0.338140227 tablespoons, using the exact defined conversion factor rather than an estimate.
How do I convert metric teaspoon to tablespoon?
Multiply the metric teaspoon value by 0.338140227. The converter above does this instantly to whatever precision you set.
How do I convert tablespoon back to metric teaspoon?
Use the reverse factor: 1 tablespoon equals 2.957352956 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 volume.
What is a tablespoon?
Tablespoon (tbsp) measures volume. The US tablespoon is exactly 14.78676478125 milliliters — 3 US teaspoons, or 1/16 of a US cup. It is classified as a US customary unit.
Is the metric teaspoon to tablespoon conversion exact?
Yes. The US tablespoon is exactly 14.78676478125 milliliters — 3 US teaspoons, or 1/16 of a US cup. That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.