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 138.3 fluid ounces into quarts we have to multiply 138.3 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

138.3 fl oz → V_(qt)

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

V_(qt) = 138.3 fl oz × 0.03125 qt

V_(qt) = 4.321875 qt

The final result is:

138.3 fl oz → 4.321875 qt

We conclude that 138.3 fluid ounces is equivalent to 4.321875 quarts:

138.3 fluid ounces = 4.321875 quarts

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 quart is equal to 0.23138105567607 × 138.3 fluid ounces.

Another way is saying that 138.3 fluid ounces is equal to 1 ÷ 0.23138105567607 quarts.

Approximate result

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

138.3 fl oz ≅ 4.322 qt

An alternative is also that one quart is approximately zero point two three one times one hundred thirty-eight point three 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