Tire Size Comparison
Compare two tire specs by diameter, width, and speedometer error.
About this tool
Enter two tire sizes in metric or P-metric format. Get the overall diameter, sidewall, width difference, and the percent error your speedometer and odometer will read at true 60 mph / 100 km/h. The most-asked mod question in r/4x4, r/Jeep, and r/Trucks.
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