You simply can't convert between linear units and square units.
There is no sensible answer to this question. A square yard is a measure of area, with dimensions [L2]. A lineal metre is a measure of distance, with dimensions [L]. Basic dimensional analysis teaches that you cannot convert between measures with different dimensions without additional information.
Multiply yards by 0.9144 to get meters.
To convert meters to miles, divide the number of meters by the conversion factor from meters to yards (1.0936), then divide by the conversion factor from yards to miles (1760). So, 10000 meters / 1.0936 yards per meter / 1760 yards per mile = approximately 6.21 miles.
yards x 0.9144 = meters
Meters x 1.09361 = yards
Yards x 0.9144 = meters
100 meters = 109.36133 yards
75 meters = 82 yards
10,000 yards = 9,140 meters
6.25 yards = 5.715 meters
5.12 meters=5.59930009 yards
9 yards = 8.2296 meters