The result of your conversion between tatami [Japan] and acre appears here
To convert between Tatami [Japan] and Acre you have to do the following:
First divide 1.62 / 0.09290304*43560 = 0.00040031
Then multiply the amount of Tatami [Japan] you want to convert to Acre, use the chart below to guide you.
Symbol: tatami
No description
Symbol: ac
No description