Teaspoons to Tablespoons Converter
3 US teaspoons = 1 US tablespoon.
Conversion result
US tablespoons = US teaspoons ÷ 3; US teaspoons = US tablespoons × 3.
Primary source: NIST SP 811, Appendix B.8 conversion factors. Published SI table values may be rounded; this converter uses the exact underlying definitions. NIST Handbook 44, Appendix C supplies the underlying inch, pound and US liquid measure definitions. NIST SP 1038, footnote 19 defines the US cup, tablespoon and teaspoon in fluid ounces.
Worked example: 4½ US teaspoons ÷ 3 = 1.5 US tablespoons.
Common conversion values
The table follows the selected direction. Results display up to 12 significant digits; exact definitions are used before display rounding.
| US teaspoons | US tablespoons |
|---|---|
| 1 | 0.333333333333 |
| 3 | 1.00000000000 |
| 6 | 2.00000000000 |
| 9 | 3.00000000000 |
| 12 | 4.00000000000 |
A US teaspoon is one sixth of a US fluid ounce, and a US tablespoon is one half. Their ratio is (1/2) ÷ (1/6) = 3. US customary measures are selected here; spoon sizes in a cutlery drawer are not calibrated measures.
Conversions use the measure named on the label. A US customary cup is 236.5882365 mL, rather than a 240 mL nutrition-label cup or a 250 mL metric cup. Actual measuring vessels and ingredient packing may vary.
How to use this tool
Enter a quantity in US teaspoons, choose the forward or reverse direction, and select Convert. Decimals, fractions such as 1/2, and mixed fractions such as 1 1/2 are supported.
Frequently asked questions
How many teaspoons make a tablespoon?
Exactly three US teaspoons make one US tablespoon under the US customary definitions.
Can I reverse the conversion or enter a fraction?
Yes. Choose the reverse direction on this same page. Enter a nonnegative decimal, fraction such as 3/4, or mixed fraction such as 1 1/2. Zero is accepted; the quantity and fraction components are limited to 10¹², and a denominator must be positive.
Is this converter free and private?
Yes. Conversions run on your device without uploading your entries or saving them to browser storage. There is no sign-up.