The result of your conversion between tatami [Japan] and cawney appears here
To convert between Tatami [Japan] and Cawney you have to do the following:
First divide 1.62 / (4/3) * (0.09290304*43560) = 0.00030023
Then multiply the amount of Tatami [Japan] you want to convert to Cawney, use the chart below to guide you.
Symbol: tatami
No description
Symbol: cawney
No description