Conversion formula

The conversion factor from teaspoons to cups is 0.020833333333319, which means that 1 teaspoon is equal to 0.020833333333319 cups:

1 tsp = 0.020833333333319 cup

To convert 1009 teaspoons into cups we have to multiply 1009 by the conversion factor in order to get the volume amount from teaspoons to cups. We can also form a simple proportion to calculate the result:

1 tsp → 0.020833333333319 cup

1009 tsp → V_(cup)

Solve the above proportion to obtain the volume V in cups:

V_(cup) = 1009 tsp × 0.020833333333319 cup

V_(cup) = 21.020833333319 cup

The final result is:

1009 tsp → 21.020833333319 cup

We conclude that 1009 teaspoons is equivalent to 21.020833333319 cups:

1009 teaspoons = 21.020833333319 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.047571853320151 × 1009 teaspoons.

Another way is saying that 1009 teaspoons is equal to 1 ÷ 0.047571853320151 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that one thousand nine teaspoons is approximately twenty-one point zero two one cups:

1009 tsp ≅ 21.021 cup

An alternative is also that one cup is approximately zero point zero four eight times one thousand nine teaspoons.

Conversion table

teaspoons to cups chart

For quick reference purposes, below is the conversion table you can use to convert from teaspoons to cups