Conversion formula

The conversion factor from gallons to quarts is 4, which means that 1 gallon is equal to 4 quarts:

1 gal = 4 qt

To convert 991 gallons into quarts we have to multiply 991 by the conversion factor in order to get the volume amount from gallons to quarts. We can also form a simple proportion to calculate the result:

1 gal → 4 qt

991 gal → V_(qt)

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

V_(qt) = 991 gal × 4 qt

V_(qt) = 3964 qt

The final result is:

991 gal → 3964 qt

We conclude that 991 gallons is equivalent to 3964 quarts:

991 gallons = 3964 quarts

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 quart is equal to 0.00025227043390515 × 991 gallons.

Another way is saying that 991 gallons is equal to 1 ÷ 0.00025227043390515 quarts.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that nine hundred ninety-one gallons is approximately three thousand nine hundred sixty-four quarts:

991 gal ≅ 3964 qt

An alternative is also that one quart is approximately zero times nine hundred ninety-one gallons.

Conversion table

gallons to quarts chart

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