The result of your conversion between Dram and cup [US] appears here
To convert between Dram and Cup [US] you have to do the following:
First divide ((0.000016387064*231)/128)/8 / (0.000016387064 * 231)/16 = 0.015625
Then multiply the amount of Dram you want to convert to Cup [US], use the chart below to guide you.
Symbol: dr
No description
Symbol: c
No description