Convert from square yard to bunder

Unit Definition (square yard)
The square yard is a traditional unit of area. 1 yd² equals 9 ft², 1296 in², or exactly 0.836 127 36 m².

Unit Definition (bunder)
The Bunder is a traditional Dutch unit of land area. Since the adoption of the metric system in the Netherlands in 1809 the bunder has been considered equal to the hectare (2.471 acres). Historically, the unit varied with locality, generally in the range 0.85-1.3 hectare. The unit was also used in Belgium, being called the bonnier in French-speaking provinces.