The result of your conversion between barrel [US, federal] and pint [US, liquid] appears here
To convert between Barrel [US, Federal] and Pint [US, Liquid] you have to do the following:
First divide (0.000016387064*231)*31 / (0.000016387064*231)/8 = 248.
Then multiply the amount of Barrel [US, Federal] you want to convert to Pint [US, Liquid], use the chart below to guide you.
Symbol: bbl
No description
Symbol: pt
No description