CCW and pant size

I haven't been able to dredge up a thread on this so I thought I'd ask. Does anyone have guidelines on what to expect in way of waist size with different CCW hosters?

Or does one just take the holster into the store and commence to trying on different sizes?

I buy pants an inch or two bigger than normal, but they still fit with a belt, when not carrying.

A inch was plenty for me.

Thinking about how to go for IDPA and potential CCW. I can't CCW locally, but I've told my manager I'm due for a relocation--as soon as the house is sellable.

I do two inches above my waist size. Its more comfortable to use the belt to keep it tight than have to wedge your holster into your pants.

Natural size +2

+1" and a 1 1/2" wide belt...Haven't lost my pants yet or shown my undies either...

I have been losing weight lately, but my pants are around 2 inches too big right now approximately and they work well for carrying IWB. If I am not carrying, they need a belt or my pants go "ghetto style" with my underwear showing lol. 1 inch would probably be enough room to carry with.

The only gun I carry IWB right now is my CZ75, which is a full size double-stack. Pants 2" larger than normal work best for me.

If I was carrying something narrower (like a 1911 or a PF9) +1" would probably be enough.

Virtually all of my normal CCW is with an IWB rig. I buy pants 1 size larger in the waist. Generally that translates into a nominal 2" difference on off-the-rack jeans and casual slacks. Haven't found it to be a problem without the weapon so far. YMMV.

Rather than invest in a new wardrobe, I just decided to use the IWB as a good reason to drop some weight. Diet until it fits. About 1" should do it.