## Conversion formula

The conversion factor from cubic inches to milliliters is 16.3870640693, which means that 1 cubic inch is equal to 16.3870640693 milliliters:

1 in3 = 16.3870640693 ml

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

1 in3 → 16.3870640693 ml

18 in3 → V(ml)

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

V(ml) = 18 in3 × 16.3870640693 ml

V(ml) = 294.9671532474 ml

The final result is:

18 in3 → 294.9671532474 ml

We conclude that 18 cubic inches is equivalent to 294.9671532474 milliliters:

18 cubic inches = 294.9671532474 milliliters

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 milliliter is equal to 0.0033902079909259 × 18 cubic inches.

Another way is saying that 18 cubic inches is equal to 1 ÷ 0.0033902079909259 milliliters.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighteen cubic inches is approximately two hundred ninety-four point nine six seven milliliters:

18 in3 ≅ 294.967 ml

An alternative is also that one milliliter is approximately zero point zero zero three times eighteen cubic inches.

## Conversion table

### cubic inches to milliliters chart

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

cubic inches (in3) milliliters (ml)
19 cubic inches 311.354 milliliters
20 cubic inches 327.741 milliliters
21 cubic inches 344.128 milliliters
22 cubic inches 360.515 milliliters
23 cubic inches 376.902 milliliters
24 cubic inches 393.29 milliliters
25 cubic inches 409.677 milliliters
26 cubic inches 426.064 milliliters
27 cubic inches 442.451 milliliters
28 cubic inches 458.838 milliliters