The result of your conversion between yard and cuerda appears here
To convert between Yard and Cuerda you have to do the following:
First divide ((0.003785411784/231)*1728)*27 / 3930 = 0.00019454
Then multiply the amount of Yard you want to convert to Cuerda, use the chart below to guide you.
Symbol: yd
No description
Symbol: cda
No description