Conversion formula

The conversion factor from fluid ounces to quarts is 0.03125, which means that 1 fluid ounce is equal to 0.03125 quarts:

1 fl oz = 0.03125 qt

To convert 638 fluid ounces into quarts we have to multiply 638 by the conversion factor in order to get the volume amount from fluid ounces to quarts. We can also form a simple proportion to calculate the result:

1 fl oz → 0.03125 qt

638 fl oz → V_(qt)

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

V_(qt) = 638 fl oz × 0.03125 qt

V_(qt) = 19.9375 qt

The final result is:

638 fl oz → 19.9375 qt

We conclude that 638 fluid ounces is equivalent to 19.9375 quarts:

638 fluid ounces = 19.9375 quarts

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 quart is equal to 0.050156739811912 × 638 fluid ounces.

Another way is saying that 638 fluid ounces is equal to 1 ÷ 0.050156739811912 quarts.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that six hundred thirty-eight fluid ounces is approximately nineteen point nine three eight quarts:

638 fl oz ≅ 19.938 qt

An alternative is also that one quart is approximately zero point zero five times six hundred thirty-eight fluid ounces.

Conversion table

fluid ounces to quarts chart

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