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 90 teaspoons into cups we have to multiply 90 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

90 tsp → V_(cup)

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

V_(cup) = 90 tsp × 0.020833333333319 cup

V_(cup) = 1.8749999999987 cup

The final result is:

90 tsp → 1.8749999999987 cup

We conclude that 90 teaspoons is equivalent to 1.8749999999987 cups:

90 teaspoons = 1.8749999999987 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.53333333333369 × 90 teaspoons.

Another way is saying that 90 teaspoons is equal to 1 ÷ 0.53333333333369 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that ninety teaspoons is approximately one point eight seven five cups:

90 tsp ≅ 1.875 cup

An alternative is also that one cup is approximately zero point five three three times ninety 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