The result of your conversion between Dram and acre foot appears here
To convert between Dram and Acre Foot you have to do the following:
First divide ((0.000016387064*231)/128)/8 / 0.028316847*43560 = 0.
Then multiply the amount of Dram you want to convert to Acre Foot, use the chart below to guide you.
Symbol: dr
No description
Symbol: ac
No description