The result of your conversion between Yard and tsubo appears here
To convert between Yard and Tsubo you have to do the following:
First divide ((0.003785411784/231)*1728)*27 / 3.3058 = 0.2312768
Then multiply the amount of Yard you want to convert to Tsubo, use the chart below to guide you.
Symbol: yds
No description
Symbol: tsubo
No description