138 imperial pints in US gallons

Conversion formula
How to convert 138 imperial pints to US gallons?

We know (by definition) that: $1\mathrm{imperialpint}\approx 0.150118740688107\mathrm{usgallon}$

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

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

Conclusion: 138 ⁢ imperialpint ≈ 20.716386214958764 ⁢ usgallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US gallon is equal to 0.0482709672248689 times 138 imperial pints.

It can also be expressed as: 138 imperial pints is equal to $\frac{1}{\mathrm{0.0482709672248689}}$ US gallons.

Approximation

An approximate numerical result would be: one hundred and thirty-eight imperial pints is about twenty point seven one US gallons, or alternatively, a US gallon is about zero point zero five times one hundred and thirty-eight imperial pints.