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 28.5 tablespoons into cups we have to multiply 28.5 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

28.5 tbsp → V_(cup)

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

V_(cup) = 28.5 tbsp × 0.062500000000211 cup

V_(cup) = 1.781250000006 cup

The final result is:

28.5 tbsp → 1.781250000006 cup

We conclude that 28.5 tablespoons is equivalent to 1.781250000006 cups:

28.5 tablespoons = 1.781250000006 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.56140350877003 × 28.5 tablespoons.

Another way is saying that 28.5 tablespoons is equal to 1 ÷ 0.56140350877003 cups.

Approximate result

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

28.5 tbsp ≅ 1.781 cup

An alternative is also that one cup is approximately zero point five six one times twenty-eight point five 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