## 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 0.4 cups into gallons we have to multiply 0.4 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

0.4 cup → V(gal)

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

V(gal) = 0.4 cup × 0.0625 gal

V(gal) = 0.025 gal

The final result is:

0.4 cup → 0.025 gal

We conclude that 0.4 cups is equivalent to 0.025 gallons:

0.4 cups = 0.025 gallons

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 gallon is equal to 40 × 0.4 cups.

Another way is saying that 0.4 cups is equal to 1 ÷ 40 gallons.

## Approximate result

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

0.4 cup ≅ 0.025 gal

An alternative is also that one gallon is approximately forty times zero point four 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)
1.4 cups 0.088 gallons
2.4 cups 0.15 gallons
3.4 cups 0.213 gallons
4.4 cups 0.275 gallons
5.4 cups 0.338 gallons
6.4 cups 0.4 gallons
7.4 cups 0.463 gallons
8.4 cups 0.525 gallons
9.4 cups 0.588 gallons
10.4 cups 0.65 gallons