Thread: 1 Click = 1/4 Min ?

Man I m struggling today.

1 Click = 1/4 min.
Please can someone refresh my memory as to what that equates to in inch at 100 mtrs ?
I need to write myself a note as to how many clicks I need at 200 and so on once zeroed at 100 mtrs.
(Have the drop chart so just need to convert back to clicks)

It would be easy if one click = 1/4 inch but I do not think that's the case..

Cheers