At 01:38 PM 6/6/2005, you wrote: >I'm here at work with no reference materiel and besides my math skills are >horrible. So, can anyone tell me the overall diameter of bhoth 175/80R13 >and 185/80R13/? Thanks in advance. Try http://www.1010tires.com/TireSizeCalculator.asp 175 - 24.02 in 185 - 24.65 in Padgett