How much taller would the sidewall of a 215/70/15 tire be compared to a 205/70/15?
P215 = Width in MM
/70= % of Width which will equal your sidewall
R15= Rim diameter
So to your question: Width difference= 15mm*.7= 10.5MM = about .41 inch
Ahh, good deal on that link, and the formula!
Thanks!