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 821 cubic centimeters into gallons we have to multiply 821 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

821 cm3 → V_(gal)

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

V_(gal) = 821 cm3 × 0.00026417205124156 gal

V_(gal) = 0.21688525406932 gal

The final result is:

821 cm3 → 0.21688525406932 gal

We conclude that 821 cubic centimeters is equivalent to 0.21688525406932 gallons:

821 cubic centimeters = 0.21688525406932 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 4.6107330085262 × 821 cubic centimeters.

Another way is saying that 821 cubic centimeters is equal to 1 ÷ 4.6107330085262 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that eight hundred twenty-one cubic centimeters is approximately zero point two one seven gallons:

821 cm3 ≅ 0.217 gal

An alternative is also that one gallon is approximately four point six one one times eight hundred twenty-one 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