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 640 cubic centimeters into gallons we have to multiply 640 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

640 cm3 → V_(gal)

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

V_(gal) = 640 cm3 × 0.00026417205124156 gal

V_(gal) = 0.1690701127946 gal

The final result is:

640 cm3 → 0.1690701127946 gal

We conclude that 640 cubic centimeters is equivalent to 0.1690701127946 gallons:

640 cubic centimeters = 0.1690701127946 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 5.9147059375 × 640 cubic centimeters.

Another way is saying that 640 cubic centimeters is equal to 1 ÷ 5.9147059375 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred forty cubic centimeters is approximately zero point one six nine gallons:

640 cm3 ≅ 0.169 gal

An alternative is also that one gallon is approximately five point nine one five times six hundred forty 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