The result of your conversion between square tenthmeter and tarea appears here
To convert between Square Tenthmeter and Tarea you have to do the following:
First divide 1.0E-20 / 628.8 = 0.
Then multiply the amount of Square Tenthmeter you want to convert to Tarea, use the chart below to guide you.
Symbol: sq tenth-meter
No description
Symbol: tarea
No description