Square Meter
Square Kilometer
Square Mile
Square Yard
Square Foot
Square Inch
Hectare
Acre
Square Meter
Square Kilometer
Square Mile
Square Yard
Square Foot
Square Inch
Hectare
Acre

Every unit of length has a corresponding unit of area, namely the area of a square with the given side length. Thus areas can be measured in square metres (m2), square centimetres (cm2), square millimetres (mm2), square kilometres (km2), square feet (ft2), square yards (yd2), square miles (mi2) etc. The SI unit of area is the square metre, which is considered an SI derived unit.