828 dry gallons in US customary cups
Result
The conversion result is: 828 dry gallons is equivalent to 15415.9979220779 US customary cups.[1]
Conversion formula
How to convert 828 dry gallons to US customary cups?
We know (by definition) that: 1 drygallon ≈ 18.618354978355 uscup.
We can set up a proportion to solve for the number of US customary cups.
1 drygallon / 828 drygallon ≈ 18.618354978355 uscup / x uscup
Now, we cross multiply to solve for our unknown x:
x uscup ≈ (828 drygallon / 1 drygallon) * 18.618354978355 uscup → x uscup ≈ 15415.99792207794 uscup
Conclusion:
828 drygallon ≈ 15415.99792207794 uscup

Conversion in the opposite direction
The inverse of the conversion factor is that 1 US customary cup is equal to 6.48676786968073e-05 times 828 dry gallons.
It can also be expressed as: 828 dry gallons is equal to 1 / 6.48676786968073e-05 US customary cups.
Approximation
An approximate numerical result would be: eight hundred and twenty-eight dry gallons is about fifteen thousand, four hundred and sixteen US customary cups, or alternatively, a US customary cup is about zero times eight hundred and twenty-eight dry gallons.
Footnotes
[1] The precision is 15 significant digits (fourteen digits to the right of the decimal point).
Results may contain small errors due to the use of floating point arithmetic.