Tire Size Calculator

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Tire Size Calculator
Related Categories: Wheel Calculator | Size Calculator | Changing Aspect Ratio | Diameter Difference | Tire Comparison Chart | White Wall | Diagnosing Tire Pull | Tire Pressure Calculator | Actual Tire Size | Rim Width Tire Size
  • Tire Sizing

  • Let's look at tire sizing for a moment. POP QUIZ 195/70R14 205/60R15 245/45R16 Which of these tires is the widest, and which is the tallest in overall diameter? Dissecting the code you find the the first number 195 is the actual width of the tire in millimeters. Divide this by the 25.4 to get…

  • Touch of Grey for Your Chevy Impala

  • …compared to the 235/50-18. For more on tire sizing, read "Calculating Approximate Tire Dimensions." * 18s are nice but I want to run 20s on my Impala, will they fit? Yes, as long as you pick a compatible wheel and run 245/35-20 as a tire size. ***Includes TPMS sensors, excluding shipping,…

  • Tire Construction Differences.

  • …you a tire that fit a particular vehicle's needs perfectly, this approach was not quite as proactive and uniform as creating sizes using a formula. It did work however and created many new sizes that are still in use to this day. Both P-metric and Euro-metric tires with the same calculation (i.e.…


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