The result of your conversion between yard and square mile appears here
To convert between Yard and Square Mile you have to do the following:
First divide ((0.003785411784/231)*1728)*27 / 0.09290304*27878400 = 0.0000003
Then multiply the amount of Yard you want to convert to Square Mile, use the chart below to guide you.
Symbol: yd
No description
Symbol: mi²
No description