Conversion formula

The conversion factor from gallons to cups is 16, which means that 1 gallon is equal to 16 cups:

1 gal = 16 cup

To convert 405 gallons into cups we have to multiply 405 by the conversion factor in order to get the volume amount from gallons to cups. We can also form a simple proportion to calculate the result:

1 gal → 16 cup

405 gal → V_(cup)

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

V_(cup) = 405 gal × 16 cup

V_(cup) = 6480 cup

The final result is:

405 gal → 6480 cup

We conclude that 405 gallons is equivalent to 6480 cups:

405 gallons = 6480 cups

Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 cup is equal to 0.00015432098765432 × 405 gallons.

Another way is saying that 405 gallons is equal to 1 ÷ 0.00015432098765432 cups.

Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four hundred five gallons is approximately six thousand four hundred eighty cups:

405 gal ≅ 6480 cup

An alternative is also that one cup is approximately zero times four hundred five gallons.

Conversion table

gallons to cups chart

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