Depending on the pants and the pockets, and what I’m going to be doing, and where.
For looser fitting cargo pants (and especially shorts), then most definitely on the shorter end, and more importantly, something on the inexpensive to replace end of the spectrum.
For more form fitting pants or jeans with deep pockets, for loose carry, I’d be willing to go larger (examples, Case large stockman, or a Mercator, both of which are at 4 1/4 inches).