305/70R18 in Inches: 305/70R18 = 34.81 Inches Overall Diameter
Quick Answer Box What is 305/70R18 in Inches? A 305/70R18 tire measures 34.81 inches in overall diameter when mounted and inflated. This size mixes metric measurements (the 305mm section width and 70% aspect ratio) with an imperial measurement (the 18-inch rim diameter), which is exactly why converting it fully to inches is confusing. Truck owners,…
