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 421 fluid ounces into quarts we have to multiply 421 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

421 fl oz → V_(qt)

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

V_(qt) = 421 fl oz × 0.03125 qt

V_(qt) = 13.15625 qt

The final result is:

421 fl oz → 13.15625 qt

We conclude that 421 fluid ounces is equivalent to 13.15625 quarts:

421 fluid ounces = 13.15625 quarts

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 quart is equal to 0.076009501187648 × 421 fluid ounces.

Another way is saying that 421 fluid ounces is equal to 1 ÷ 0.076009501187648 quarts.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four hundred twenty-one fluid ounces is approximately thirteen point one five six quarts:

421 fl oz ≅ 13.156 qt

An alternative is also that one quart is approximately zero point zero seven six times four hundred twenty-one 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