The result of your conversion between Robie and acre foot appears here
To convert between Robie and Acre Foot you have to do the following:
First divide 0.00001 / 0.028316847*43560 = 0.00000001
Then multiply the amount of Robie you want to convert to Acre Foot, use the chart below to guide you.
Symbol: ?
No description
Symbol: ac
No description