# 138 US customary cups in dry gallons

## Conversion

138 US customary cups is equivalent to 7.41204043861199 dry gallons.^{[1]}

## Conversion formula

How to convert 138 US customary cups to dry gallons?

We know (by definition) that: $1\mathrm{uscup}\approx 0.0537104379609565\mathrm{drygallon}$

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

$\frac{1\mathrm{uscup}}{138\mathrm{uscup}}\approx \frac{0.0537104379609565\mathrm{drygallon}}{x\mathrm{drygallon}}$Now, we cross multiply to solve for our unknown $x$:

$x\mathrm{drygallon}\approx \frac{138\mathrm{uscup}}{1\mathrm{uscup}}*0.0537104379609565\mathrm{drygallon}\to x\mathrm{drygallon}\approx 7.412040438611998\mathrm{drygallon}$Conclusion: $138\mathrm{uscup}\approx 7.412040438611998\mathrm{drygallon}$

## Conversion in the opposite direction

The inverse of the conversion factor is that **1 dry gallon is equal to 0.134915615785181 times 138 US customary cups**.

It can also be expressed as: 138 US customary cups is equal to $\frac{1}{\mathrm{0.134915615785181}}$ dry gallons.

## Approximation

An approximate numerical result would be: **one hundred and thirty-eight US customary cups is about seven point four one dry gallons**, or alternatively, *a dry gallon is about zero point one three times one hundred and thirty-eight 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.