## Conversion formula

The conversion factor from cubic centimeters to gallons is 0.00026417205124156, which means that 1 cubic centimeter is equal to 0.00026417205124156 gallons:

1 cm3 = 0.00026417205124156 gal

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

1 cm3 → 0.00026417205124156 gal

18 cm3 → V(gal)

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

V(gal) = 18 cm3 × 0.00026417205124156 gal

V(gal) = 0.0047550969223481 gal

The final result is:

18 cm3 → 0.0047550969223481 gal

We conclude that 18 cubic centimeters is equivalent to 0.0047550969223481 gallons:

18 cubic centimeters = 0.0047550969223481 gallons

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 210.30065555556 × 18 cubic centimeters.

Another way is saying that 18 cubic centimeters is equal to 1 ÷ 210.30065555556 gallons.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eighteen cubic centimeters is approximately zero point zero zero five gallons:

18 cm3 ≅ 0.005 gal

An alternative is also that one gallon is approximately two hundred ten point three zero one times eighteen cubic centimeters.

## Conversion table

### cubic centimeters to gallons chart

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

cubic centimeters (cm3) gallons (gal)
19 cubic centimeters 0.005 gallons
20 cubic centimeters 0.005 gallons
21 cubic centimeters 0.006 gallons
22 cubic centimeters 0.006 gallons
23 cubic centimeters 0.006 gallons
24 cubic centimeters 0.006 gallons
25 cubic centimeters 0.007 gallons
26 cubic centimeters 0.007 gallons
27 cubic centimeters 0.007 gallons
28 cubic centimeters 0.007 gallons