Today, I was shopping for new tires for my car and got totally confused by all the numbers and ratings. One that caught my eye was the “treadwear” rating. I saw a tire with “500 treadwear” and I was like, “What the heck does that even mean?” So, I decided to figure it out, and here’s what I did.

Started with a Simple Search
First, I grabbed my phone and did a quick search. I just typed in “what does 500 treadwear mean on tires” and hit enter. I scrolled through a bunch of websites, and most of them were just trying to sell me tires. But I found a couple that actually explained the rating system.
Figuring Out the Basics
I learned that the treadwear number is part of something called the Uniform Tire Quality Grading (UTQG) system. Basically, it’s a way to compare how long a tire’s tread should last. It’s not a perfect science, but it gives you a general idea.
Digging into the Details
From what I gathered, a tire with a treadwear rating of 100 is the baseline. So, a tire with a 500 treadwear rating should theoretically last five times longer than the baseline tire. It’s all relative, though.
- Higher Number = Longer Tread Life: I figured out that a higher treadwear number means the tire should last longer.
- Lower Number = Shorter Tread Life: Conversely, a lower number means the tread will wear out faster.
Putting It into Perspective
So, back to the 500 treadwear tire. I now understand that it’s supposed to have a pretty long-lasting tread compared to, say, a tire with a 200 or 300 treadwear rating. It’s not a guarantee of mileage, but it’s a good indicator.
Making My Decision
After all that research, I felt a lot more confident about choosing tires.I compared the 500 to some others and eventually pick the one with the longer treadwear.

Armed with this new knowledge, I went back to looking at tires and felt much better about making a choice. It’s still a bit confusing, but at least I have a better grasp of what that 500 treadwear number is all about!