The result of your conversion between acre [survey] and fanega appears here
To convert between Acre [survey] and Fanega you have to do the following:
First divide 0.092903412*43560 / 6430 = 0.62937366
Then multiply the amount of Acre [survey] you want to convert to Fanega, use the chart below to guide you.
Symbol: ac
No description
Symbol: fanega
No description