Conversion formula

The conversion factor from tablespoons to cups is 0.062500000000211, which means that 1 tablespoon is equal to 0.062500000000211 cups:

1 tbsp = 0.062500000000211 cup

To convert 18 tablespoons into cups we have to multiply 18 by the conversion factor in order to get the volume amount from tablespoons to cups. We can also form a simple proportion to calculate the result:

1 tbsp → 0.062500000000211 cup

18 tbsp → V_(cup)

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

V_(cup) = 18 tbsp × 0.062500000000211 cup

V_(cup) = 1.1250000000038 cup

The final result is:

18 tbsp → 1.1250000000038 cup

We conclude that 18 tablespoons is equivalent to 1.1250000000038 cups:

18 tablespoons = 1.1250000000038 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.88888888888588 × 18 tablespoons.

Another way is saying that 18 tablespoons is equal to 1 ÷ 0.88888888888588 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighteen tablespoons is approximately one point one two five cups:

18 tbsp ≅ 1.125 cup

An alternative is also that one cup is approximately zero point eight eight nine times eighteen tablespoons.

Conversion table

tablespoons to cups chart

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