The result of your conversion between barn and square angstrom appears here
To convert between Barn and Square Angstrom you have to do the following:
First divide 1E-28 / 1.0E-20 = 0.00000001
Then multiply the amount of Barn you want to convert to Square Angstrom, use the chart below to guide you.
Symbol: b
No description
Symbol: A²
No description