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 18.9 tablespoons into cups we have to multiply 18.9 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

18.9 tbsp → V_(cup)

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

V_(cup) = 18.9 tbsp × 0.062500000000211 cup

V_(cup) = 1.181250000004 cup

The final result is:

18.9 tbsp → 1.181250000004 cup

We conclude that 18.9 tablespoons is equivalent to 1.181250000004 cups:

18.9 tablespoons = 1.181250000004 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.84656084655798 × 18.9 tablespoons.

Another way is saying that 18.9 tablespoons is equal to 1 ÷ 0.84656084655798 cups.

Approximate result

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

18.9 tbsp ≅ 1.181 cup

An alternative is also that one cup is approximately zero point eight four seven times eighteen point nine 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