How Many US Cups in a Teaspoon?

Quick Answer
1 Teaspoon = 0.021 US Cups

1 tsp = 0.021 cup

Formula

cup = tsp × 0.021

Conversion Table

Teaspoons (tsp)US Cups (cup)
1 tsp0.021 cup
2 tsp0.042 cup
5 tsp0.104 cup
10 tsp0.208 cup
20 tsp0.417 cup
50 tsp1.042 cup
100 tsp2.083 cup
500 tsp10.417 cup
1,000 tsp20.833 cup

Worked Examples

Convert 5 tsp to cup:
5 tsp × 0.021 = 0.104 cup
Convert 10 tsp to cup:
10 tsp × 0.021 = 0.208 cup
Convert 50 tsp to cup:
50 tsp × 0.021 = 1.042 cup

FAQ

How many US Cups are in 1 Teaspoon?
There are 0.021 US Cups in 1 Teaspoon. Formula: cup = tsp × 0.021.
How to convert Teaspoons to US Cups?
To convert Teaspoons to US Cups, multiply the number of Teaspoons by 0.021. For example, 10 tsp = 0.208 cup.
How many US Cups are in 100 Teaspoons?
There are 2.083 US Cups in 100 Teaspoons. Calculation: 100 × 0.021 = 2.083.