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 666.5 teaspoons into cups we have to multiply 666.5 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

666.5 tsp → V_(cup)

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

V_(cup) = 666.5 tsp × 0.020833333333319 cup

V_(cup) = 13.885416666657 cup

The final result is:

666.5 tsp → 13.885416666657 cup

We conclude that 666.5 teaspoons is equivalent to 13.885416666657 cups:

666.5 teaspoons = 13.885416666657 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.072018004501174 × 666.5 teaspoons.

Another way is saying that 666.5 teaspoons is equal to 1 ÷ 0.072018004501174 cups.

Approximate result

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

666.5 tsp ≅ 13.885 cup

An alternative is also that one cup is approximately zero point zero seven two times six hundred sixty-six point 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