21 US customary cups in dry gallons

Result

The conversion result is: 21 US customary cups is equivalent to 1.12791919718009 dry gallons.[1]

Conversion formula
How to convert 21 US customary cups to dry gallons?

We know (by definition) that: 1 uscup ≈ 0.0537104379609565 drygallon.

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

1 uscup / 21 uscup ≈ 0.0537104379609565 drygallon / x drygallon

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

x drygallon ≈ (21 uscup / 1 uscup) * 0.0537104379609565 drygallon → x drygallon ≈ 1.1279191971800866 drygallon

Conclusion:

21 uscup ≈ 1.1279191971800866 drygallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 dry gallon is equal to 0.886588332302618 times 21 US customary cups.

It can also be expressed as: 21 US customary cups is equal to 1 / 0.886588332302618 dry gallons.

Approximation

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

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.