Fluid Ounces to Teaspoons Converter
Enter the volume in fluid ounces below to convert it to teaspoons.
Convert Fluid Ounces (US) to Teaspoons (US)
Enter a value in fluid ounces (us) (fl oz) to convert to teaspoons (us) (tsp).
Fluid Ounce to Teaspoon Conversion Table
Table showing various fluid ounce measurements converted to teaspoons. Click any preset value or arrow to load it into the converter.
How to Convert Fluid Ounces to Teaspoons
To convert fluid ounces to teaspoons, multiply the volume by the following conversion ratio: 6 teaspoons/fluid ounce.
Since one fluid ounce is equal to 6 teaspoons, you can use this simple formula to convert:
The volume in teaspoons is equal to the volume in fluid ounces multiplied by 6.
For example, here's how to convert 5 fluid ounces to teaspoons using the formula above.
How Many Teaspoons Are in a Fluid Ounce?
There are 6 teaspoons in a fluid ounce, which is why we use this value in the formula above.
Our fluid ounce to teaspoon calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Fluid Ounces and teaspoons are both units used to measure volume. Keep reading to learn more about each unit.
What Is a Fluid Ounce?
A fluid ounce is a unit of volume equal to 0.0295735 liters (L), the base unit for volume. 1/128 of a US gallon (29.5735 mL). [1]
The fluid ounce is classified as a US customary unit of volume. Fluid Ounces can be abbreviated as fl oz; for example, 1 fluid ounce can be written as 1 fl oz.
When working with fluid ounces (fl oz) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, fluid ounces (fl oz) 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 fluid ounces (fl oz) and teaspoons (tsp), keep full floating-point precision (1 fl oz = 6 tsp; 1 tsp = 0.1666667 fl oz) during intermediate calculations and round only the final teaspoon figure to match your instrument tolerance.
More Fluid Ounce & Teaspoon Conversions
Need to calculate in the opposite direction? Use our teaspoons (us) to fluid ounces (us) calculator to switch your starting unit immediately. You can also explore related tools such as converting teaspoons (us) to fluid ounces (us), converting tablespoons (us) to teaspoons (us), or converting milliliters to teaspoons (us).
Convert from Fluid Ounces
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Fluid Ounces (US) (fl oz) to Teaspoons (US) (tsp)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Fluid Ounce (US) (fl oz) & Teaspoon (US) (tsp)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (fl oz to tsp)