The result of your conversion between quart [US, dry] and barrel [UK, wine] appears here
To convert between Quart [US, Dry] and Barrel [UK, Wine] you have to do the following:
First divide 0.0044048838/4 / 0.00454609*31.5 = 0.00768999
Then multiply the amount of Quart [US, Dry] you want to convert to Barrel [UK, Wine], use the chart below to guide you.
Symbol: qt
No description
Symbol: bbl
No description