13 US customary cups in US gallons

Result

The conversion result is: 13 US customary cups is equivalent to 0.8125 US gallons.^[1]

Conversion formula
How to convert 13 US customary cups to US gallons?

We know (by definition) that: 1 uscup ≈ 0.0625 usgallon.

We can set up a proportion to solve for the number of US gallons.

1 uscup / 13 uscup ≈ 0.0625 usgallon / x usgallon

Now, we cross multiply to solve for our unknown x:

x usgallon ≈ (13 uscup / 1 uscup) * 0.0625 usgallon → x usgallon ≈ 0.8125 usgallon

Conclusion:

13 uscup ≈ 0.8125 usgallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US gallon is equal to 1.23076923076923 times 13 US customary cups.

It can also be expressed as: 13 US customary cups is equal to 1 / 1.23076923076923 US gallons.

Approximation

An approximate numerical result would be: thirteen US customary cups is about zero point eight one US gallons, or alternatively, a US gallon is about one point two three times thirteen US customary cups.