Conversion formula

The conversion factor from cubic centimeters to fluid ounces is 0.033814022558919, which means that 1 cubic centimeter is equal to 0.033814022558919 fluid ounces:

1 cm3 = 0.033814022558919 fl oz

To convert 21 cubic centimeters into fluid ounces we have to multiply 21 by the conversion factor in order to get the volume amount from cubic centimeters to fluid ounces. We can also form a simple proportion to calculate the result:

1 cm3 → 0.033814022558919 fl oz

21 cm3 → V_{(fl oz)}

Solve the above proportion to obtain the volume V in fluid ounces:

V_{(fl oz)} = 21 cm3 × 0.033814022558919 fl oz

V_{(fl oz)} = 0.71009447373731 fl oz

The final result is:

21 cm3 → 0.71009447373731 fl oz

We conclude that 21 cubic centimeters is equivalent to 0.71009447373731 fluid ounces:

21 cubic centimeters = 0.71009447373731 fluid ounces

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 fluid ounce is equal to 1.4082633184524 × 21 cubic centimeters.

Another way is saying that 21 cubic centimeters is equal to 1 ÷ 1.4082633184524 fluid ounces.

Approximate result

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

21 cm3 ≅ 0.71 fl oz

An alternative is also that one fluid ounce is approximately one point four zero eight times twenty-one cubic centimeters.

Conversion table

cubic centimeters to fluid ounces chart

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