138 US customary cups in US quarts

Conversion formula
How to convert 138 US customary cups to US quarts?

We know (by definition) that: $1\mathrm{uscup}\approx 0.25\mathrm{usquart}$

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

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

Conclusion: 138 ⁢ uscup ≈ 34.5 ⁢ usquart

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US quart is equal to 0.0289855072463768 times 138 US customary cups.

It can also be expressed as: 138 US customary cups is equal to $\frac{1}{\mathrm{0.0289855072463768}}$ US quarts.

Approximation

An approximate numerical result would be: one hundred and thirty-eight US customary cups is about zero US quarts, or alternatively, a US quart is about zero point zero three times one hundred and thirty-eight US customary cups.