Conversion formula

The conversion factor from cubic inches to teaspoons is 3.3246753246849, which means that 1 cubic inch is equal to 3.3246753246849 teaspoons:

1 in3 = 3.3246753246849 tsp

To convert 20.4 cubic inches into teaspoons we have to multiply 20.4 by the conversion factor in order to get the volume amount from cubic inches to teaspoons. We can also form a simple proportion to calculate the result:

1 in3 → 3.3246753246849 tsp

20.4 in3 → V_(tsp)

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

V_(tsp) = 20.4 in3 × 3.3246753246849 tsp

V_(tsp) = 67.823376623571 tsp

The final result is:

20.4 in3 → 67.823376623571 tsp

We conclude that 20.4 cubic inches is equivalent to 67.823376623571 teaspoons:

20.4 cubic inches = 67.823376623571 teaspoons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 teaspoon is equal to 0.014744178921526 × 20.4 cubic inches.

Another way is saying that 20.4 cubic inches is equal to 1 ÷ 0.014744178921526 teaspoons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty point four cubic inches is approximately sixty-seven point eight two three teaspoons:

20.4 in3 ≅ 67.823 tsp

An alternative is also that one teaspoon is approximately zero point zero one five times twenty point four cubic inches.

Conversion table

cubic inches to teaspoons chart

For quick reference purposes, below is the conversion table you can use to convert from cubic inches to teaspoons