FORScan Tire Size Calculator Forscan Tire Size Calculator Forscan Tire Size Calculator Calculate the correct Forscan codes for your new tire size Stock Tire Size Width (mm) ⓘ Aspect Ratio ⓘ Wheel Size (inches) ⓘ New Tire Size Width (mm) ⓘ Aspect Ratio ⓘ Wheel Size (inches) ⓘ Calculate Forscan Values Results Export Results