Convert US tablespoons to US teaspoons
Enter any value to calculate the result instantly.
US tablespoons to US teaspoons formula
Multiply tablespoons by 3. One US tablespoon contains exactly three US teaspoons under the customary relationship used here.
Conversion table
Use these reference values for a quick comparison. The calculator above accepts positive, negative, decimal, and large values when they are meaningful for the quantity.
| US tablespoons | US teaspoons |
|---|---|
| 0.5 tbsp | 1.5 tsp |
| 1 tbsp | 3 tsp |
| 2 tbsp | 6 tsp |
| 3 tbsp | 9 tsp |
| 4 tbsp | 12 tsp |
| 8 tbsp | 24 tsp |
How to use this converter
Enter the source measurement in the first field. CalUnit applies the displayed formula and updates the destination value immediately. You can use decimals and negative values, copy the result into your work, and compare it with the reference table. Keep the original unit beside the starting measurement so another reader can verify the calculation. For a different unit pair, open the complete cooking conversion guide or the multi-unit cooking converter.
When this conversion is useful
Regional spoon definitions differ, and an Australian tablespoon is commonly 20 mL rather than the US value near 14.79 mL. Use matching regional measures.
Accuracy and rounding
The 3-to-1 relationship is exact for US customary spoons. Household eating spoons are not calibrated measuring tools.
Standards references
CalUnit checks physical unit relationships against authoritative measurement references. See the NIST Guide to the SI conversion factors and the BIPM SI Brochure. Regional cooking measures and digital storage conventions are identified separately because their names can represent more than one definition.