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 13.8 teaspoons into cups we have to multiply 13.8 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

13.8 tsp → V_(cup)

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

V_(cup) = 13.8 tsp × 0.020833333333319 cup

V_(cup) = 0.28749999999981 cup

The final result is:

13.8 tsp → 0.28749999999981 cup

We conclude that 13.8 teaspoons is equivalent to 0.28749999999981 cups:

13.8 teaspoons = 0.28749999999981 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 3.4782608695676 × 13.8 teaspoons.

Another way is saying that 13.8 teaspoons is equal to 1 ÷ 3.4782608695676 cups.

Approximate result

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

13.8 tsp ≅ 0.287 cup

An alternative is also that one cup is approximately three point four seven eight times thirteen point eight 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