How do I convert teaspoons to cups?
Type a value in either box, and the answer shows it in the other unit as you type.
- Cups (cup)
- 0.020833
1 tsp = 0.020833 cups.
Cups (cup): 0.020833. 1 tsp = 0.020833 cups.
Cups (cup) by teaspoons (tsp)
How to calculate
Converts teaspoons (tsp) to cups (cup) and back, with the exact unit definitions.
Example with the default inputs (Teaspoons (tsp) 1): 1 tsp = 0.020833 cups.
Formula: cup = tsp × 0.0208333333333 (the same as tsp ÷ 48)
- 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
Each example is checked against the calculator on every build.
- Teaspoons (tsp) 1 gives Cups (cup) 0.020833.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Teaspoons (tsp) 48 gives Cups (cup) 1.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
- Cups (cup) 1 gives Teaspoons (tsp) 48.Source: Exact unit definitions in NIST SP 811 (2008), Appendix B.8
Other questions people ask
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, 1 tsp × 0.020833 = 0.020833 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.