this might have been posted before But it seems pretty neat. http://www.miata.net/garage/tirecalc.html
WOW AND I thought Most people wanted their Calculators to be smaller... and rectangular Wha WHa WHaaaaa LOL
Soooo...what size was standard on a 73 Comet V8 5 lug? The originals on my car were removed immediately upon arriving at the homestead. Since I will NEVER place original hubcap rims back on my car, I neglected to note the tire size before throwing them off the Santa Monica pier. I think they were 14" rims.