Tablespoons to Milliliters Converter
1 US tablespoon is exactly 14.78676478125 milliliters. To convert tablespoons to milliliters, multiply by 14.78676478125.
Sources: NIST SP 811, NIST Handbook 44, BIPM SI Brochure Updated
Result
1 tbsp = 14.7868 mL
How to convert tablespoons to milliliters
milliliters = tablespoons × 14.78676478125
1 US tablespoon is exactly 1/2 US fluid ounce (3 teaspoons). 1 milliliter is one thousandth of a liter (1 cubic centimeter).
The factor 14.78676478125 is exact, not a rounded value. Nothing is rounded until you choose how many decimals to show.
Worked example: 3 tbsp
- Start with the value in tablespoons: 3 tbsp.
- Multiply by 14.78676478125, because 1 tablespoon = 14.78676478125 milliliters: 3 × 14.78676478125 = 44.36029434375 mL.
- Round to the precision you need: 44.36 mL to two decimals.
Tablespoons and milliliters side by side
Tablespoons to milliliters chart
Tablespoons from 0.25 to 16 converted to milliliters with the exact factor, shown to five significant digits.
| tbsp | mL |
|---|---|
| 0.25 | 3.6967 |
| 0.5 | 7.3934 |
| 1 | 14.787 |
| 1.5 | 22.18 |
| 2 | 29.574 |
| 3 | 44.36 |
| 4 | 59.147 |
| 5 | 73.934 |
| 6 | 88.721 |
| 8 | 118.29 |
| 10 | 147.87 |
| 12 | 177.44 |
| 16 | 236.59 |
milliliters = tablespoons × 14.78676478125. Factors: NIST SP 811, NIST Handbook 44, BIPM SI Brochure. unitcheck.net/cooking/tablespoons-to-milliliters/
Which cup, tablespoon and teaspoon?
All kitchen measures on this page are US customary: 1 cup is 8 US fluid ounces (236.5882365 mL), 1 tablespoon is half a fluid ounce (14.78676 mL) and 1 teaspoon is a third of a tablespoon (4.928922 mL). Cups and spoons sold in other countries can hold a different amount, so for a recipe written outside the United States check which measure the author means.
Going the other way? Use the Milliliters to Tablespoons converter.
Frequently asked questions
How many milliliters are in 1 tablespoon?
1 US tablespoon is exactly 14.78676478125 milliliters. 1 US tablespoon is exactly 1/2 US fluid ounce (3 teaspoons).
How do I convert tablespoons to milliliters?
Multiply by 14.78676478125: milliliters = tablespoons × 14.78676478125. For example, 3 tbsp = 44.36 mL.
How many tablespoons are in 1 milliliter?
1 milliliter is about 0.067628 US tablespoons. To go the other way, use the milliliters to tablespoons converter.
Is the tbsp to mL conversion exact?
Yes. 1 US tablespoon is exactly 1/2 US fluid ounce (3 teaspoons). The factor 14.78676478125 follows from the definitions, so the only rounding is in the number of decimals you display.
Sources
- NIST Special Publication 811, Guide for the Use of the International System of Units, Appendix B.8: Factors for Units Listed Alphabetically — exact factors are printed in bold in the NIST table (checked October 12, 2026)
- NIST Handbook 44 (2026), Appendix C: General Tables of Units of Measurement — US customary units and their exact relationships (checked October 12, 2026)
- BIPM, The International System of Units (SI Brochure), 9th edition — defines the SI units, the prefixes and the units accepted for use with the SI