Conversion formula

The conversion factor from cubic feet to quarts is 29.92207792209, which means that 1 cubic foot is equal to 29.92207792209 quarts:

1 ft3 = 29.92207792209 qt

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

1 ft3 → 29.92207792209 qt

21 ft3 → V_(qt)

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

V_(qt) = 21 ft3 × 29.92207792209 qt

V_(qt) = 628.3636363639 qt

The final result is:

21 ft3 → 628.3636363639 qt

We conclude that 21 cubic feet is equivalent to 628.3636363639 quarts:

21 cubic feet = 628.3636363639 quarts

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 quart is equal to 0.0015914351851845 × 21 cubic feet.

Another way is saying that 21 cubic feet is equal to 1 ÷ 0.0015914351851845 quarts.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that twenty-one cubic feet is approximately six hundred twenty-eight point three six four quarts:

21 ft3 ≅ 628.364 qt

An alternative is also that one quart is approximately zero point zero zero two times twenty-one cubic feet.

Conversion table

cubic feet to quarts chart

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