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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 5.1 cups into gallons we have to multiply 5.1 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

5.1 cup → V(gal)

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

V(gal) = 5.1 cup × 0.0625 gal

V(gal) = 0.31875 gal

The final result is:

5.1 cup → 0.31875 gal

We conclude that 5.1 cups is equivalent to 0.31875 gallons:

5.1 cups = 0.31875 gallons

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 3.1372549019608 × 5.1 cups.

Another way is saying that 5.1 cups is equal to 1 ÷ 3.1372549019608 gallons.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that five point one cups is approximately zero point three one nine gallons:

5.1 cup ≅ 0.319 gal

An alternative is also that one gallon is approximately three point one three seven times five point 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)
6.1 cups 0.381 gallons
7.1 cups 0.444 gallons
8.1 cups 0.506 gallons
9.1 cups 0.569 gallons
10.1 cups 0.631 gallons
11.1 cups 0.694 gallons
12.1 cups 0.756 gallons
13.1 cups 0.819 gallons
14.1 cups 0.881 gallons
15.1 cups 0.944 gallons