Tablespoons to Teaspoons Converter
Enter the volume in tablespoons below to convert it to teaspoons.
Convert Tablespoons (US) to Teaspoons (US)
Enter a value in tablespoons (us) (tbsp) to convert to teaspoons (us) (tsp).
Tablespoon to Teaspoon Conversion Table
Table showing various tablespoon measurements converted to teaspoons. Click any preset value or arrow to load it into the converter.
How to Convert Tablespoons to Teaspoons
To convert tablespoons to teaspoons, multiply the volume by the following conversion ratio: 3 teaspoons/tablespoon.
Since one tablespoon is equal to 3 teaspoons, you can use this simple formula to convert:
The volume in teaspoons is equal to the volume in tablespoons multiplied by 3.
For example, here's how to convert 4 tablespoons to teaspoons using the formula above.
How Many Teaspoons Are in a Tablespoon?
There are 3 teaspoons in a tablespoon, which is why we use this value in the formula above.
Our tablespoon to teaspoon calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Tablespoons and teaspoons are both units used to measure volume. Keep reading to learn more about each unit.
What Is a Tablespoon?
A tablespoon is a unit of volume equal to 0.0147868 liters (L), the base unit for volume. 1/2 US fluid ounce or 3 US teaspoons (14.7868 mL). [1]
The tablespoon is classified as a US customary unit of volume. Tablespoons can be abbreviated as tbsp; for example, 1 tablespoon can be written as 1 tbsp.
When working with tablespoons (tbsp) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, tablespoons (tbsp) are widely used across standard volume applications within US customary workflows, engineering documentation, and technical data sheets.
What Is a Teaspoon?
A teaspoon is a unit of volume equal to 0.0049289 liters (L), the base unit for volume. 1/3 of a US tablespoon (4.9289 mL). [2]
The teaspoon is classified as a US customary unit of volume. Teaspoons can be abbreviated as tsp; for example, 1 teaspoon can be written as 1 tsp.
When working with teaspoons (tsp) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, teaspoons (tsp) are widely used across fine-tolerance laboratory, analytical, and micro-scale volume measurements within US customary workflows, engineering documentation, and technical data sheets.
When converting volume between tablespoons (tbsp) and teaspoons (tsp), keep full floating-point precision (1 tbsp = 3 tsp; 1 tsp = 0.3333333 tbsp) during intermediate calculations and round only the final teaspoon figure to match your instrument tolerance.
More Tablespoon & Teaspoon Conversions
Need to calculate in the opposite direction? Use our teaspoons (us) to tablespoons (us) converter (tsp to tbsp) to switch your starting unit immediately. You can also explore related tools such as converting milliliters to teaspoons (us), converting tablespoons (us) to cups (us), or converting tablespoons (us) to milliliters.
Convert from Tablespoons
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Tablespoons (US) (tbsp) to Teaspoons (US) (tsp)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Tablespoon (US) (tbsp) & Teaspoon (US) (tsp)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (tbsp to tsp)