The result of your conversion between pony and yard appears here
To convert between Pony and Yard you have to do the following:
First divide (0.000016387064*231)/128 / ((0.003785411784/231)*1728)*27 = 0.00003868
Then multiply the amount of Pony you want to convert to Yard, use the chart below to guide you.
Symbol: pony
No description
Symbol: yds
No description