Is there a standard for number of LP's per inch?


I want to get an idea of how many LPs I own. Is there an agreed-upon standard for how many discs are in a running inch, or foot? There is a lot of variation so it would be helpful to know if this is a known quantity.
128x128etnier
No, there is not standard "records per inch" calculation due to too many variables.  Just take some average records and measure how many make up an inch.
OK! Maybe I'll see if I can come up with a useful standard here. Thanks for your help!
Take a few samples from your collection to see how many per inch.   Then use the average per inch X # inches total and there is your estimate.

I'd separate out box sets if you can and count or estimate those separately.
also consider if a double album is one or two records as that will effect your outcome. also jacket thickness to some degree.
Guys thanks for all your responses. I was really trying to see if one of the collector organizations had previously set a standard. I'll take all your tips into account. Best to all.
No standard depends on the thickness of the pressings etc.No such thing as LPs by the inch or foot.Good luck though!!
How many albums do you own?! Why not just count them all? Or count the LP's in one cubicle (if your racks are comprised of multiple cubicles), then multiply that number by the number of cubicles.
Seriously if you want to know how many you own, count them.I have counted my LPs many times. I still own about 2,800. I use to own 4000, and before that 6000, and before that 13,000.Best to really just count jackets. not individual LPs. One cover is one album (no matter one Lp or 2 or even 3), sets count as one.I use a sheet, and mark down each bin quantity on the sheet. then add up the paper numbers.   
I can say trying to estimate is usually off by 20% Unless you are really really good at it.