Conversions can be done either with the "->" conversion operator or with the equivalent "convert" function. The function has three parameters: a quantity, a unit to convert from and a unit to convert to. Likewise the conversion operator uses three values: the quantity and unit to convert from are placed on the left side of the operator while the unit to convert to goes to the right side.
The basic unit of area is the square meter. All units of area are expressed in terms of this base unit and so measurements can be converted from any one of the following units to any other.
10 m2 -> foot2 = 107.6391
convert(10; m2; feet2) = 107.6391
10 m2 -> acres = 0.0024711
convert(10; m2; acre) = 0.0024711
10 m2 -> hectares = 0.001
convert(10; m2; hectare) = 0.001
10 hectares -> acres = 24.710538
convert(10; hectare; acre) = 24.710538
10 acres -> hectares = 4.0468564
convert(10; acre; hectare) = 4.0468564
10 mile2 -> km2 = 25.899881
convert(10; mile2; km2) = 25.899881
10 km2 -> mile2 = 3.8610216
convert(10; km2; mile2) = 3.8610216
10 feet2 -> m2 = 0.9290304
convert(10; foot2; m2) = 0.9290304
10 feet2 -> yard2 = 1.1111111
convert(10; foot2; yard2) = 1.1111111