First of all sorry if this isn't the right place to post this - I've read a few threads on here while searching google and that's why I've signed up.
I'm a 20 year old trying to buy a simple smart suit for the first time, and ideally want to get something inexpensive with low hassle, hence why I'm trying to measure myself at home so I know roughly want I want when I go to a store (most tailored places round here seem to be out of my price range at first glance).
From measuring myself today, it seems my chest is 40" (rounding up - more like 39.5) at the widest point under arms. For off the shelf suits the chest seems to be all I need - I've been reading that in most stores the trouser waist size is decided by the jacket width with the 6-inch drop - this would dictate that I wear 34" suit trousers. I've been shopping and tried various stores' suit trousers and found that in all cases 34" is too tight (when they can fasten at all - this seems to vary by style) since unlike the 34" jeans I usually wear, they tend to sit directly under the belly button rather than the hips. After coming back, I measured my waist around the belly button (where my 'belly' is at its widest) and get 37" rounding to the nearest inch. Which is weird in itself because I found some 36" trousers which were okay around the waist.
This doesn't really inspire confidence as I assumed that suits off the rack would generally fit in most cases unless your body is very atypical. Are there alternative 'drops' which allow for this? Or is my assessment of 'too tight' wrong - since I'm not used to wearing suit trousers, how tight should they be around the stomach?
I'll probably have more questions when I think of them, thanks for reading this anyway. General advice also appreciated.