Teaspoons to Cups Converter
Enter the volume in teaspoons below to convert it to cups.
Convert Teaspoons (US) to Cups (US)
Enter a value in teaspoons (us) (tsp) to convert to cups (us) (cup).
Teaspoon to Cup Conversion Table
Table showing various teaspoon measurements converted to cups. Click any preset value or arrow to load it into the converter.
| Teaspoons (US) (tsp) | Cups (US) (cup) |
|---|---|
| 1 tsp | 0.0208333 cup |
| 2 tsp | 0.0416667 cup |
| 2.5 tsp | 0.0520833 cup |
| 5 tsp | 0.1041667 cup |
| 10 tsp | 0.2083333 cup |
| 15 tsp | 0.3125 cup |
| 20 tsp | 0.4166667 cup |
| 25 tsp | 0.5208333 cup |
| 30 tsp | 0.625 cup |
| 50 tsp | 1.0416667 cup |
How to Convert Teaspoons to Cups
To convert teaspoons to cups, multiply the volume by the following conversion ratio: 0.0208333 cups/teaspoon.
Since one teaspoon is equal to 0.0208333 cups, you can use this simple formula to convert:
The volume in cups is equal to the volume in teaspoons multiplied by 0.0208333.
For example, here's how to convert 5 teaspoons to cups using the formula above.
How Many Cups Are in a Teaspoon?
There are 0.0208333 cups in a teaspoon, which is why we use this value in the formula above.
Our teaspoon to cup calculator automatically converts your volume measurements with full decimal and scientific precision across US customary, imperial, and SI metric standards.
Teaspoons and cups are both units used to measure volume. Keep reading to learn more about each unit.
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). [1]
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.
What Is a Cup?
A cup is a unit of volume equal to 0.2365882 liters (L), the base unit for volume. Equal to 8 US fluid ounces or 16 US tablespoons (236.59 mL). [2]
The cup is classified as a US customary unit of volume. Cups can be abbreviated as cup; for example, 1 cup can be written as 1 cup.
When working with cups (cup) in formulas or technical specifications, always verify whether your target system uses SI metric, US customary, or British imperial standards.
In practice, cups (cup) are widely used across standard volume applications within US customary workflows, engineering documentation, and technical data sheets.
When converting volume between teaspoons (tsp) and cups (cup), keep full floating-point precision (1 tsp = 0.0208333 cup; 1 cup = 48 tsp) during intermediate calculations and round only the final cup figure to match your instrument tolerance.
More Teaspoon & Cup Conversions
Need to calculate in the opposite direction? Use our cups (us) to teaspoons (us) calculator to switch your starting unit immediately. You can also explore related tools such as converting cups (us) to teaspoons (us), converting tablespoons (us) to cups (us), or converting liters to cups (us).
Convert from Teaspoons
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Frequently Asked Questions
References
- [1]NIST OWM StandardNIST OWM (SI Units — Volume)·Volume & Liquid Metrology Standard — Teaspoons (US) (tsp) to Cups (US) (cup)
- [2]NIST HB 44 SpecificationNIST HB 44 (Liquid & Dry Capacity Tables)·Unit Specifications: Teaspoon (US) (tsp) & Cup (US Customary) (cup)
- [3]NIST SP 811 ReferenceNIST SP 811 (NIST SP 811 App. B.9)·Conversion Factors & Mathematical Basis (tsp to cup)