# 16 teaspoons to cups

Converts teaspoons (tsp) to cups (cup) and back, with the exact unit definitions.

- Page: https://www.acalculator.org/convert/16-teaspoons-to-cups
- JSON spec: https://www.acalculator.org/convert/16-teaspoons-to-cups.json
- Version: 45b9760ee73a

## Default answer

Example with the default inputs (Teaspoons (tsp) 16): 16 tsp = 0.333333 cups.

## Inputs

| Key | Label | Description |
| --- | --- | --- |
| value | Teaspoons (tsp) | The amount in teaspoons to convert. |
| result | Cups (cup) | The same amount in cups. |

## Outputs

| Key | Label | Description |
| --- | --- | --- |
| value | Teaspoons (tsp) | The amount in teaspoons to convert. |
| result | Cups (cup) | The amount in cups. |

## Method

cup = tsp × 0.0208333333333 (the same as tsp ÷ 48)

## Assumptions

- 1 teaspoon = 0.0208333333333 cups, from the exact definitions in NIST SP 811.
- Cups, ounces, tablespoons, teaspoons, pints, quarts, and gallons are US customary units: 1 US cup is 8 US fluid ounces.
- The answer shows at most 6 decimal places; the calculation keeps full precision.

## Worked examples

1. value = 1 gives result = 0.020833. Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8.
2. value = 48 gives result = 1. Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8.
3. result = 1 gives value = 48. Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8.

## FAQ

### What is 16 teaspoons in cups?

16 tsp is 0.333333 cups. The formula is cup = tsp × 0.0208333333333 (the same as tsp ÷ 48).

### How many cups are in a teaspoon?

1 teaspoon is 0.020833 cups, from the exact unit definitions (NIST SP 811).

### How do I convert teaspoons to cups?

Multiply by 0.020833: cup = tsp × 0.0208333333333 (the same as tsp ÷ 48). For example, 16 tsp × 0.020833 = 0.333333 cups.

### How do I convert cups back to teaspoons?

Multiply by 48, or type the cups into the second box and the converter works it out. 1 cup is 48 teaspoons.

## Sources

- NIST SP 811 (2008), Guide for the Use of the International System of Units, Appendix B.8. https://www.nist.gov/pml/special-publication-811