Unit Converter
Conversion formula
The conversion factor from cups to gallons is 0.0625, which means that 1 cup is equal to 0.0625 gallons:
1 cup = 0.0625 gal
To convert 21 cups into gallons we have to multiply 21 by the conversion factor in order to get the volume amount from cups to gallons. We can also form a simple proportion to calculate the result:
1 cup → 0.0625 gal
21 cup → V(gal)
Solve the above proportion to obtain the volume V in gallons:
V(gal) = 21 cup × 0.0625 gal
V(gal) = 1.3125 gal
The final result is:
21 cup → 1.3125 gal
We conclude that 21 cups is equivalent to 1.3125 gallons:
21 cups = 1.3125 gallons
Alternative conversion
We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 0.76190476190476 × 21 cups.
Another way is saying that 21 cups is equal to 1 ÷ 0.76190476190476 gallons.
Approximate result
For practical purposes we can round our final result to an approximate numerical value. We can say that twenty-one cups is approximately one point three one three gallons:
21 cup ≅ 1.313 gal
An alternative is also that one gallon is approximately zero point seven six two times twenty-one cups.
Conversion table
cups to gallons chart
For quick reference purposes, below is the conversion table you can use to convert from cups to gallons
cups (cup) | gallons (gal) |
---|---|
22 cups | 1.375 gallons |
23 cups | 1.438 gallons |
24 cups | 1.5 gallons |
25 cups | 1.563 gallons |
26 cups | 1.625 gallons |
27 cups | 1.688 gallons |
28 cups | 1.75 gallons |
29 cups | 1.813 gallons |
30 cups | 1.875 gallons |
31 cups | 1.938 gallons |