The result of your conversion between kilojoule and pound/cubic foot appears here
To convert between Kilojoule and Pound/cubic Foot you have to do the following:
First divide 1000 / 0.45359237/((0.0037854118/231)*1728) = 62.42796084
Then multiply the amount of Kilojoule you want to convert to Pound/cubic Foot, use the chart below to guide you.
Symbol: kJ
No description
Symbol: lb/ft³
No description