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tablespoon (tbsp) → teaspoon (tsp)

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Use our free online converter to convert between units instantly. Enter any value in the field above to get accurate results. No signup or download required—all conversions run in your browser. Our calculator uses standard conversion factors for reliability.

0
tbsp=tsp
0.01=0.03
0.1=0.300001
1=3.000008
2=6.000016
3=9.000024
5=15.000041
10=30.000081
20=60.000162
50=150.000406
100=300.000812
1000=3,000.0081

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Brief explanation: tablespoon to teaspoon

Liter is the base volume unit in the metric system. US gallon = 3.78 L. Cup = 236 ml. Tablespoon = 15 ml, teaspoon = 5 ml. Volume measures how much space a substance occupies. The metric system (L, mL) is used worldwide. US customary units (gal, cup, tbsp, tsp) are common in American recipes. When converting, use the exact factors for accuracy—especially in cooking and chemistry.

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Common conversion examples: tablespoon to teaspoon

Reference values for quick comparison. Use the converter above for any amount.

  • 1 tablespoon=3 teaspoon
  • 5 tablespoon=15 teaspoon
  • 10 tablespoon=30.0001 teaspoon

About the Units

tablespoon (tbsp)

Definition: A tablespoon (tbsp) is a unit of volume. In the US, one tablespoon equals approximately 14.787 mL or 3 teaspoons. It is used for smaller recipe measurements.
History: The tablespoon emerged from actual spoon sizes used in cooking. Standardization varied until modern recipe conventions. US and metric tablespoons differ slightly.
Current use: Tablespoons are used in recipes for spices, oils, and small liquid amounts. Medication dosing sometimes uses tablespoons. One tablespoon is about 15 mL.

teaspoon (tsp)

Definition: A teaspoon (tsp) is a unit of volume. In the US, one teaspoon equals approximately 4.929 mL or 1/3 tablespoon. It is the smallest common cooking measure.
History: The teaspoon derived from the size of spoons used for tea. It became a standard cooking measure. US and metric teaspoons are very close (5 mL in metric).
Current use: Teaspoons are used for spices, extracts, and small recipe amounts. Medication dosing often uses teaspoons (5 mL). It is the base for larger cooking measures.

Sources

Conversion factors and unit definitions follow international standards. For authoritative references, see: