A metric tablespoon is 15 milliliters.
Metric tablespoons to Milliliters Converter — metric tbsp to mL
Convert Metric tablespoon (metric tbsp) to Milliliter (mL) using the exact conversion factor (1 metric tablespoon = 15 milliliter). See the formula, worked examples, conversion table, history, and common uses.
Metric tablespoons to Milliliters 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.
Milliliter is 0.001 liter units.
Result = input x 1.5e-5 / 1e-6.
Volume units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Metric tablespoons to Milliliters
Metric tablespoon and Milliliter 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 milliliter is 0.001 liter units.
Formula
milliliters = metric tablespoons × 15
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 milliliter equals 0.000001 base units, so dividing one by the other gives the direct metric tablespoon-to-milliliter factor of 15.
Simple example
1 metric tbsp × 15 = 15 mL
1 metric tablespoon = 15 milliliters.
Real-world example
2 metric tbsp × 15 = 30 mL
2 metric tablespoons = 30 milliliters.
Conversion table
| Metric tablespoon (metric tbsp) | Milliliter (mL) |
|---|---|
| 0.25 metric tbsp | 3.75 mL |
| 0.5 metric tbsp | 7.5 mL |
| 1 metric tbsp | 15 mL |
| 2 metric tbsp | 30 mL |
| 4 metric tbsp | 60 mL |
| 8 metric tbsp | 120 mL |
Reverse conversion: Milliliter to Metric tablespoon
15 mL × 0.06666666667 = 1 metric tbsp
15 milliliters = 1 metric tablespoons.
metric tablespoons = milliliters × 0.0666666666667
For a page dedicated to this direction, see Milliliter to Metric tablespoon.
Understanding the Metric tablespoon (metric tbsp)
A metric tablespoon is 15 milliliters.
Understanding the Milliliter
Milliliter (mL) measures volume. A milliliter is one-thousandth of a liter, equal to one cubic centimeter. It is classified as a SI derived (metric prefix) unit.
Where it's used: Standard small-volume unit worldwide
Uses of the Milliliter today
- Medicine dosing (worldwide, including in the US)
- Cooking and recipe measurement outside the US
- Beverage and small-container labeling
History of the Milliliter
The milliliter follows directly from the liter via the 'milli-' SI prefix. It is notable as one of the few metric units in routine US use, since medicine dosing (syringes, liquid medication) is specified in milliliters even in the US.
Historical origin. Milliliter was not the invention of a single named person; it developed through the process described above.
Milliliter — sources
- BIPM SI Brochure — SI prefixes — Defines 'milli-' as the prefix for 10⁻³.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many milliliters are in 1 metric tablespoon?
1 metric tablespoon equals 15 milliliters, using the exact defined conversion factor rather than an estimate.
How do I convert metric tablespoon to milliliter?
Multiply the metric tablespoon value by 15. The converter above does this instantly to whatever precision you set.
How do I convert milliliter back to metric tablespoon?
Use the reverse factor: 1 milliliter equals 0.0666666667 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 milliliter?
Milliliter (mL) measures volume. A milliliter is one-thousandth of a liter, equal to one cubic centimeter. It is classified as a SI derived (metric prefix) unit.
Is the metric tablespoon to milliliter conversion exact?
Yes. Both metric tablespoon and milliliter are defined by fixed standards rather than physical artifacts, so the factor of 15 used above is exact to as many digits as you choose to display.