A US tablespoon is half a US fluid ounce.
Tablespoons to Liters Converter — tbsp to L
Convert Tablespoon (tbsp) to Liter (L) using the exact conversion factor (1 tablespoon = 0.0147867648 liter). See the formula, worked examples, conversion table, unit comparison, history, and common uses.
Tablespoons to Liters 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 liter is one cubic decimeter.
Result = input x 1.47867648e-5 / 0.001.
Volume units are compatible.
Reserved above the conversion cards and below the converter.
About Converting Tablespoons to Liters
Tablespoon and Liter 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. Tablespoon is typically associated with united States (cooking and recipe measurement), while Liter is typically associated with standard volume unit for liquids worldwide, including in the US for beverages and fuel labeling in some contexts.
Formula
liters = tablespoons × 0.0147867647812
This factor comes from each unit's defined relationship to the category's base unit: 1 tablespoon equals 0.0000147867647813 base units, and 1 liter equals 0.001 base units, so dividing one by the other gives the direct tablespoon-to-liter factor of 0.0147867647812.
Simple example
1 tbsp × 0.01478676478 = 0.0147867648 L
1 tablespoon = 0.0147867648 liters.
Real-world example
2 tbsp × 0.01478676478 = 0.0295735296 L
2 tablespoons = 0.0295735296 liters.
Conversion table
| Tablespoon (tbsp) | Liter (L) |
|---|---|
| 0.25 tbsp | 0.0036966912 L |
| 0.5 tbsp | 0.0073933824 L |
| 1 tbsp | 0.0147867648 L |
| 2 tbsp | 0.0295735296 L |
| 4 tbsp | 0.0591470591 L |
| 8 tbsp | 0.1182941182 L |
Reverse conversion: Liter to Tablespoon
0.0147867648 L × 67.6280454 = 1.000000001 tbsp
0.0147867648 liters = 1.000000001 tablespoons.
tablespoons = liters × 67.6280454037
For a page dedicated to this direction, see Liter to Tablespoon.
Tablespoon vs. Liter
| Aspect | Tablespoon | Liter |
|---|---|---|
| Family | US customary unit | Non-SI metric unit accepted for use with SI |
| Typical use | US recipe and cooking measurement | Beverage, fuel, and liquid product packaging worldwide |
| Where it's used | United States (cooking and recipe measurement) | Standard volume unit for liquids worldwide, including in the US for beverages and fuel labeling in some contexts |
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
Understanding the Liter
Liter (L) measures volume. A liter is defined as exactly one cubic decimeter (0.001 cubic meters). It is classified as a Non-SI metric unit accepted for use with SI.
Where it's used: Standard volume unit for liquids worldwide, including in the US for beverages and fuel labeling in some contexts
Uses of the Liter today
- Beverage, fuel, and liquid product packaging worldwide
- Cooking and recipe measurement in metric countries
- Laboratory and scientific volume measurement
History of the Liter
The liter was introduced with the French metric system in 1795, originally defined as the volume of one kilogram of pure water at its freezing point — tying volume, mass, and the meter together.
Between 1901 and 1964, the liter was briefly redefined as the volume of exactly one kilogram of water at its maximum density (about 4 °C), which made it very slightly larger than a cubic decimeter. It was redefined back to exactly one cubic decimeter in 1964, the definition still used today.
Historical origin. Liter was not the invention of a single named person; it developed through the process described above.
Tablespoon — sources
- NIST Handbook 44, Appendix C — General tables of units including the US tablespoon definition.
Liter — sources
- BIPM SI Brochure — Non-SI units accepted for use with SI — Current cubic-decimeter definition of the liter.
Reserved between the cards and the FAQ so the page stays balanced.
Frequently asked questions
How many liters are in 1 tablespoon?
1 tablespoon equals 0.0147867648 liters, using the exact defined conversion factor rather than an estimate.
How do I convert tablespoon to liter?
Multiply the tablespoon value by 0.01478676478. The converter above does this instantly to whatever precision you set.
How do I convert liter back to tablespoon?
Use the reverse factor: 1 liter equals 67.6280454 tablespoons. You can also use the swap control in the converter above to flip the direction instantly.
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.
What is a liter?
Liter (L) measures volume. A liter is defined as exactly one cubic decimeter (0.001 cubic meters). It is classified as a Non-SI metric unit accepted for use with SI.
Is the tablespoon to liter conversion exact?
Yes. A liter is defined as exactly one cubic decimeter (0.001 cubic meters). That fixed definition is what the converter above uses, so any rounding you see is a display choice, not a limitation of the math.
Where is the tablespoon still used today?
United States (cooking and recipe measurement)