A US tablespoon is half a US fluid ounce.
Tablespoons to Femtoliters Converter — tbsp to fL
Convert Tablespoon (tbsp) to Femtoliter (fL) using the exact conversion factor (1 tablespoon = 1.478676e+13 femtoliter). See the formula, worked examples, conversion table, and common uses.
Tablespoons to Femtoliters 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.
Femtoliter is 1e-15 liter units.
Result = input x 1.47867648e-5 / 1e-18.
Volume uses the cubic meter as the base unit.
Reserved above the conversion cards and below the converter.
About Converting Tablespoons to Femtoliters
Tablespoon and Femtoliter 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. Tablespoon is most often used for us recipe and cooking measurement.
Formula
femtoliters = tablespoons × 1.478676e+13
This factor comes from each unit's defined relationship to the category's base unit: 1 tablespoon equals 0.0000147867647813 base units, and 1 femtoliter equals 1e-18 base units, so dividing one by the other gives the direct tablespoon-to-femtoliter factor of 1.478676e+13.
Simple example
1 tbsp × 1.478676e+13 = 1.478676e+13 fL
1 tablespoon = 1.478676e+13 femtoliters.
Real-world example
10 tbsp × 1.478676e+13 = 1.478676e+14 fL
10 tablespoons = 1.478676e+14 femtoliters.
Conversion table
| Tablespoon (tbsp) | Femtoliter (fL) |
|---|---|
| 1 tbsp | 1.478676e+13 fL |
| 5 tbsp | 7.393382e+13 fL |
| 10 tbsp | 1.478676e+14 fL |
| 25 tbsp | 3.696691e+14 fL |
| 50 tbsp | 7.393382e+14 fL |
| 100 tbsp | 1.478676e+15 fL |
Reverse conversion: Femtoliter to Tablespoon
1.478676e+13 fL × 6.762805e-14 = 0.9999996767 tbsp
1.478676e+13 femtoliters = 0.9999996767 tablespoons.
tablespoons = femtoliters × 6.762805e-14
For a page dedicated to this direction, see Femtoliter to Tablespoon.
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 Femtoliter (fL)
Femtoliter is 1e-15 liter units.
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 femtoliters are in 1 tablespoon?
1 tablespoon equals 1.478676e+13 femtoliters, using the exact defined conversion factor rather than an estimate.
How do I convert tablespoon to femtoliter?
Multiply the tablespoon value by 1.478676e+13. The converter above does this instantly to whatever precision you set.
How do I convert femtoliter back to tablespoon?
Use the reverse factor: 1 femtoliter equals 6.762805e-14 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 femtoliter?
Femtoliter (fL) is a unit of volume.
Is the tablespoon to femtoliter 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.
Where is the tablespoon still used today?
United States (cooking and recipe measurement)