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Tire Treadwear Rating Comparison

Compare two different UTQG treadwear ratings to estimate which tire will last longer and by what percentage.

Quick Answer

If you compare a standard touring tire with a 600 treadwear rating to a performance tire with a 400 treadwear rating, the 600-rated tire is expected to last roughly 50% longer. While the 400-rated tire might last 40,000 miles, the 600-rated tire should theoretically reach 60,000 miles under identical driving conditions.

Found on the tire sidewall as three values: treadwear number, traction grade, temperature grade

Treadwear Comparison Estimator

Tire A (Treadwear)Tire B (Treadwear)Difference (%)Estimated Life Factor
200400+100%Tire B lasts twice as long
400500+25%Tire B lasts 1/4 longer
500600+20%Tire B lasts 1/5 longer
400800+100%Tire B lasts twice as long
600700+16%Tire B lasts slightly longer
300600+100%Tire B lasts twice as long

Formula

Difference % = ((Higher Treadwear − Lower Treadwear) ÷ Lower Treadwear) × 100

  • Example: ((600 − 400) ÷ 400) × 100 = 50% longer life
  • Rule of thumb: Treadwear rating × 100 ≈ expected miles under normal conditions
  • Cross-brand comparisons are unreliable — manufacturers self-test against their own baseline
  • Higher treadwear = harder rubber = less grip, especially in wet conditions

Frequently Asked Questions

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