Conversion formula

The conversion factor from cubic inches to fluid ounces is 0.55411255411377, which means that 1 cubic inch is equal to 0.55411255411377 fluid ounces:

1 in3 = 0.55411255411377 fl oz

To convert 685 cubic inches into fluid ounces we have to multiply 685 by the conversion factor in order to get the volume amount from cubic inches to fluid ounces. We can also form a simple proportion to calculate the result:

1 in3 → 0.55411255411377 fl oz

685 in3 → V_{(fl oz)}

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

V_{(fl oz)} = 685 in3 × 0.55411255411377 fl oz

V_{(fl oz)} = 379.56709956793 fl oz

The final result is:

685 in3 → 379.56709956793 fl oz

We conclude that 685 cubic inches is equivalent to 379.56709956793 fluid ounces:

685 cubic inches = 379.56709956793 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 0.002634580291965 × 685 cubic inches.

Another way is saying that 685 cubic inches is equal to 1 ÷ 0.002634580291965 fluid ounces.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred eighty-five cubic inches is approximately three hundred seventy-nine point five six seven fluid ounces:

685 in3 ≅ 379.567 fl oz

An alternative is also that one fluid ounce is approximately zero point zero zero three times six hundred eighty-five cubic inches.

Conversion table

cubic inches to fluid ounces chart

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