## Conversion formula

The conversion factor from cubic feet to cubic inches is 1727.9999999969, which means that 1 cubic foot is equal to 1727.9999999969 cubic inches:

1 ft3 = 1727.9999999969 in3

To convert 18 cubic feet into cubic inches we have to multiply 18 by the conversion factor in order to get the volume amount from cubic feet to cubic inches. We can also form a simple proportion to calculate the result:

1 ft3 → 1727.9999999969 in3

18 ft3 → V(in3)

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

V(in3) = 18 ft3 × 1727.9999999969 in3

V(in3) = 31103.999999945 in3

The final result is:

18 ft3 → 31103.999999945 in3

We conclude that 18 cubic feet is equivalent to 31103.999999945 cubic inches:

18 cubic feet = 31103.999999945 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 3.2150205761374E-5 × 18 cubic feet.

Another way is saying that 18 cubic feet is equal to 1 ÷ 3.2150205761374E-5 cubic inches.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighteen cubic feet is approximately thirty-one thousand one hundred four cubic inches:

18 ft3 ≅ 31104 in3

An alternative is also that one cubic inch is approximately zero times eighteen cubic feet.

## Conversion table

### cubic feet to cubic inches chart

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

cubic feet (ft3) cubic inches (in3)
19 cubic feet 32832 cubic inches
20 cubic feet 34560 cubic inches
21 cubic feet 36288 cubic inches
22 cubic feet 38016 cubic inches
23 cubic feet 39744 cubic inches
24 cubic feet 41472 cubic inches
25 cubic feet 43200 cubic inches
26 cubic feet 44928 cubic inches
27 cubic feet 46656 cubic inches
28 cubic feet 48384 cubic inches