For 90° cross winds I use 1 foot for each 1 mph of wind.
If the flag stick is 142 yards away with a 5 mph 90° cross wind:
5 x 1.42 = 7.1 feet - I want to move the aim point against the wind.
If the flag stick is 97 yards away with a 20 mph 90° cross wind:
20 x .97 = 19.4 feet - I want to move the aim point against the wind.
The Aim box size is not consistent. It varies with some camera views.
What is consistent, regardless which camera view is used, is the putting green break grid indicator used from off the green with Pitch or Chip as the selected *** type.
The grid is 20 yards wide, and centered on the aim point. So the aim point is centered 10 feet from each edge of the grid.
For 45° diagonal cross winds I use a factor of 0.7 feet for each 1 mph of diagonal wind.
If the flag stick is 142 yards away with a 5 mph 45° cross wind:
5 x 0.7 x 1.42 = 4.97 feet - I want to move the aim point against the wind.
If the flag stick is 97 yards away with a 20 mph 45° cross wind:
20 x .07 x .97 = 13.58 feet - I want to move the aim point against the wind.
For less than 45° cross winds I use a factor of 0.6 to 0.4 feet for each 1 mph of wind.
These calculations are only about the line of the shot line, and don't take how diagonal winds, elevation changes, ball spin, and club trajectory shapes will effect the distance of a shot.
Also don't forget to account for the slope of the green where you intend the ball to land.
When a ball lands on the green it usually bounces in the direction the wind is blowing. So you have to add a bit more aim point offset to account for that.
The goal is to keep your approach shots inside 10 feet of the pin