421 imperial cups in US gallons

Conversion formula
How to convert 421 imperial cups to US gallons?

We know (by definition) that: $1\mathrm{brcup}\approx 0.0750593703440534\mathrm{usgallon}$

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: 421 ⁢ brcup ≈ 31.59999491484648 ⁢ usgallon

Conversion in the opposite direction

The inverse of the conversion factor is that 1 US gallon is equal to 0.0316455747127407 times 421 imperial cups.

It can also be expressed as: 421 imperial cups is equal to $\frac{1}{\mathrm{0.0316455747127407}}$ US gallons.

Approximation

An approximate numerical result would be: four hundred and twenty-one imperial cups is about thirty-one point six zero US gallons, or alternatively, a US gallon is about zero point zero three times four hundred and twenty-one imperial cups.