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 18 teaspoons into cups we have to multiply 18 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

18 tsp → V_(cup)

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

V_(cup) = 18 tsp × 0.020833333333319 cup

V_(cup) = 0.37499999999975 cup

The final result is:

18 tsp → 0.37499999999975 cup

We conclude that 18 teaspoons is equivalent to 0.37499999999975 cups:

18 teaspoons = 0.37499999999975 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 2.6666666666685 × 18 teaspoons.

Another way is saying that 18 teaspoons is equal to 1 ÷ 2.6666666666685 cups.

Approximate result

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

18 tsp ≅ 0.375 cup

An alternative is also that one cup is approximately two point six six seven times eighteen 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