Tire Size Comparison Calculator

[Jareth]

I have seen others post a calculator for wheels but I don't know if I have seen one for tires?

Here is one I found, I apologize if it has been posted before.

Tire Size Comparison Visualizer

 

[Rauq]

I always just pop open a calculator: I have 225/45R17 for my build. 225 is the tread width (in mm), 45 is the aspect ratio (tread width to sidewall ratio), 17 is wheel diameter (obv).
[Tread width * aspect ratio * 2 (two sidewalls, top and bottom)] / 25.4 (mm -> in) + wheel diameter
(225 * .45 * 2) / 25.4 + 17 = 24.97" tall

I'm thinking about running a wider rear if/when power levels dictate, maybe a 255/40R17
(255 * .40 *2) / 25.4 + 17 = 25.03" tall

 

[PaulPerger]

I always just pop open a calculator: I have 225/45R17 for my build. 225 is the tread width (in mm), 45 is the aspect ratio (tread width to sidewall ratio), 17 is wheel diameter (obv).
[Tread width * aspect ratio * 2 (two sidewalls, top and bottom)] / 25.4 (mm -> in) + wheel diameter
(225 * .45 * 2) / 25.4 + 17 = 24.97" tall

I'm thinking about running a wider rear if/when power levels dictate, maybe a 255/40R17
(255 * .40 *2) / 25.4 + 17 = 25.03" tall

True. But the link provides a visual of those figures...

 

[Jareth]

Correct, compared to stock size for mine it shows the following visual and data info. It also shows how much my Speedo would be off.

 

[Towerdog]

My donor was a 07 SS/SC with 18" wheels to almost perfectly match the original height but drop the wheel size down to 17" ( cheaper wheels and more common tire sizes) i went with a 275/40 R17 rear

 

[milesart05]

Thanks for this. I'm planning to get new tires this month from 4WheelOnline for 18" wheels and I haven't yet finish deciding the tire size that I'll get.

 

[JBINTX]

Here is another one that is helpful.

Custom rims, wheel tire packages

Custom rims, wheel tire packages. Browse hundreds custom aftermarket rim-tire packages for your car, truck or SUV. Online fitment guides - See what fits.

www.rimsntires.com