The answer is: Almoust correct
1 m = 1.093611 yd
the guns convergence (as far as i know) is in meters, while gunsight are in meters for Axis planes and Yards for Allied.
Keep in mind that your gun convergence is splitted in 2:
Horizontal and Vertical
Horizontal is the point where bullets will reach a single point, while Vertical should be the distance where the guns will hit the point at the center of gunsight (if it has been correctly set obviously).
@All:
If i'm wrong please correct me