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 645 teaspoons into cups we have to multiply 645 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

645 tsp → V_(cup)

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

V_(cup) = 645 tsp × 0.020833333333319 cup

V_(cup) = 13.437499999991 cup

The final result is:

645 tsp → 13.437499999991 cup

We conclude that 645 teaspoons is equivalent to 13.437499999991 cups:

645 teaspoons = 13.437499999991 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.074418604651213 × 645 teaspoons.

Another way is saying that 645 teaspoons is equal to 1 ÷ 0.074418604651213 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty-five teaspoons is approximately thirteen point four three seven cups:

645 tsp ≅ 13.437 cup

An alternative is also that one cup is approximately zero point zero seven four times six hundred forty-five 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