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Unit Converter

Conversion formula

The conversion factor from cubic inches to cups is 0.069264069264221, which means that 1 cubic inch is equal to 0.069264069264221 cups:

1 in3 = 0.069264069264221 cup

To convert 21 cubic inches into cups we have to multiply 21 by the conversion factor in order to get the volume amount from cubic inches to cups. We can also form a simple proportion to calculate the result:

1 in3 → 0.069264069264221 cup

21 in3 → V(cup)

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

V(cup) = 21 in3 × 0.069264069264221 cup

V(cup) = 1.4545454545486 cup

The final result is:

21 in3 → 1.4545454545486 cup

We conclude that 21 cubic inches is equivalent to 1.4545454545486 cups:

21 cubic inches = 1.4545454545486 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.68749999999849 × 21 cubic inches.

Another way is saying that 21 cubic inches is equal to 1 ÷ 0.68749999999849 cups.

Approximate result

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

21 in3 ≅ 1.455 cup

An alternative is also that one cup is approximately zero point six eight seven times twenty-one cubic inches.

Conversion table

cubic inches to cups chart

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

cubic inches (in3) cups (cup)
22 cubic inches 1.524 cups
23 cubic inches 1.593 cups
24 cubic inches 1.662 cups
25 cubic inches 1.732 cups
26 cubic inches 1.801 cups
27 cubic inches 1.87 cups
28 cubic inches 1.939 cups
29 cubic inches 2.009 cups
30 cubic inches 2.078 cups
31 cubic inches 2.147 cups