Rectangle area calculatorCalculate the area of a rectangle instantly from its length and width.LengthMillimetre (mm)Centimetre (cm)Metre (m)Kilometre (km)Inch (in)Foot (ft)Yard (yd)×WidthMillimetre (mm)Centimetre (cm)Metre (m)Kilometre (km)Inch (in)Foot (ft)Yard (yd)Area—