Unit Converter
Conversion formula
The conversion factor from cubic inches to cubic feet is 0.00057870370370473, which means that 1 cubic inch is equal to 0.00057870370370473 cubic feet:
1 in3 = 0.00057870370370473 ft3
To convert 21 cubic inches into cubic feet we have to multiply 21 by the conversion factor in order to get the volume amount from cubic inches to cubic feet. We can also form a simple proportion to calculate the result:
1 in3 → 0.00057870370370473 ft3
21 in3 → V(ft3)
Solve the above proportion to obtain the volume V in cubic feet:
V(ft3) = 21 in3 × 0.00057870370370473 ft3
V(ft3) = 0.012152777777799 ft3
The final result is:
21 in3 → 0.012152777777799 ft3
We conclude that 21 cubic inches is equivalent to 0.012152777777799 cubic feet:
21 cubic inches = 0.012152777777799 cubic feet
Alternative conversion
We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cubic foot is equal to 82.285714285568 × 21 cubic inches.
Another way is saying that 21 cubic inches is equal to 1 ÷ 82.285714285568 cubic feet.
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 zero point zero one two cubic feet:
21 in3 ≅ 0.012 ft3
An alternative is also that one cubic foot is approximately eighty-two point two eight six times twenty-one cubic inches.
Conversion table
cubic inches to cubic feet chart
For quick reference purposes, below is the conversion table you can use to convert from cubic inches to cubic feet
cubic inches (in3) | cubic feet (ft3) |
---|---|
22 cubic inches | 0.013 cubic feet |
23 cubic inches | 0.013 cubic feet |
24 cubic inches | 0.014 cubic feet |
25 cubic inches | 0.014 cubic feet |
26 cubic inches | 0.015 cubic feet |
27 cubic inches | 0.016 cubic feet |
28 cubic inches | 0.016 cubic feet |
29 cubic inches | 0.017 cubic feet |
30 cubic inches | 0.017 cubic feet |
31 cubic inches | 0.018 cubic feet |