Conversion formula

The conversion factor from teaspoons to cubic inches is 0.30078124999914, which means that 1 teaspoon is equal to 0.30078124999914 cubic inches:

1 tsp = 0.30078124999914 in3

To convert 490 teaspoons into cubic inches we have to multiply 490 by the conversion factor in order to get the volume amount from teaspoons to cubic inches. We can also form a simple proportion to calculate the result:

1 tsp → 0.30078124999914 in3

490 tsp → V_(in3)

Solve the above proportion to obtain the volume V in cubic inches:

V_(in3) = 490 tsp × 0.30078124999914 in3

V_(in3) = 147.38281249958 in3

The final result is:

490 tsp → 147.38281249958 in3

We conclude that 490 teaspoons is equivalent to 147.38281249958 cubic inches:

490 teaspoons = 147.38281249958 cubic inches

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cubic inch is equal to 0.0067850516830303 × 490 teaspoons.

Another way is saying that 490 teaspoons is equal to 1 ÷ 0.0067850516830303 cubic inches.

Approximate result

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

490 tsp ≅ 147.383 in3

An alternative is also that one cubic inch is approximately zero point zero zero seven times four hundred ninety teaspoons.

Conversion table

teaspoons to cubic inches chart

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