This online area converter will convert acres (ac), hectares (ha), square miles (mi2), square kilometers (km2), square yards (yd2), square meters (m2), and square feet (ft2) to and from their most popular counterparts.
Plus, unlike other online unit converters, this area converter will show the formula it used for converting as well as the step-by-step math it used to complete the conversion.
Finally, the calculator also provides a feature that will allow you to create your own custom, printable, area conversion chart. Just select the type you are converting from and to, enter the desired starting and ending measurements, and click the button. Cool!