The result of your conversion between barrel [US, federal] and quart [US, liquid] appears here
To convert between Barrel [US, Federal] and Quart [US, Liquid] you have to do the following:
First divide (0.000016387064*231)*31 / (0.000016387064*231)/4 = 124.
Then multiply the amount of Barrel [US, Federal] you want to convert to Quart [US, Liquid], use the chart below to guide you.
Symbol: bbl
No description
Symbol: qt
No description