like others have said..depends on your scenario.
if i can stay at my home..then we've got stored food to last the wife and I for a year rationing a bit...but we do expect family to come calling so much less time.
we have a large 2 acre pond (well stocked), running stream, and deep well..plenty of wild game which would get hit hard from others in the area so would turn to domestic livestock (rabbits/goats).
large garden so our stored food would need to last us til next harvest season.
spare 200 gals of gas on hand and never less than 80lbs of propane for the travel trailer (which is a prep in itself).
to that end, if we have to leave and have even 30 mins for evac...then we have supplies in tubs, gas cans, 6gal water jugs, etc..all ready to toss in the truck and camper and we're gone...estimate 30 days on the run with no oppty to resupply.
ammo and guns plenty nuff for several nights of zombie fun..after that.. I imagine I'd be in other kinds of trouble anyway.
we have large n small gensets and fuel, plus multiple backup heat sources.
guess I'm saying we likely have more preps than we will survive to enjoy.
but my real expectation is that the economy will tear us apart bit by bit before we ever need an emergency prep... I could loose my house, my truck, my health...etc..and a meteor never even crash into the Atlantic..that sucks! :xeye: