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 39.9 teaspoons into cups we have to multiply 39.9 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

39.9 tsp → V_(cup)

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

V_(cup) = 39.9 tsp × 0.020833333333319 cup

V_(cup) = 0.83124999999944 cup

The final result is:

39.9 tsp → 0.83124999999944 cup

We conclude that 39.9 teaspoons is equivalent to 0.83124999999944 cups:

39.9 teaspoons = 0.83124999999944 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 1.2030075187978 × 39.9 teaspoons.

Another way is saying that 39.9 teaspoons is equal to 1 ÷ 1.2030075187978 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that thirty-nine point nine teaspoons is approximately zero point eight three one cups:

39.9 tsp ≅ 0.831 cup

An alternative is also that one cup is approximately one point two zero three times thirty-nine point nine 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