2 days ago · Wheel and Tire Sizing Guide and Knowledge Base. Get answers to your questions about wheel specs for your vehicle.

Enter the wheel and tire sizes to find the perfect fitment and avoid fitment issues such as poke, inset and rubbing. We'll even calculate potential speedo error.

Find a perfect set of wheels and tires by size, vehicle, brand or category. If you're not sure where to start, our wheel fitment guide will help you understand the differences between tire types …

Use our comprehensive online wheel size calculator to visualise different alloy wheels and tyre combinations. Calculate your offset, compare tyre stretch, rolling radius and more.

Easily calculate your vehicle’s rim size, sidewall height, and tire circumference with our free online Rim Size Calculator tool.

Enter your vehicle specs, desired wheel dimensions, and tire size. Our tool instantly maps offsets and estimiated fender gaps so you can see the exact fit before you order a new set of wheels.

Wheel-it-fit is a wheel fitment calculator that allows you to visualize two overlapped configurations. You can choose any combination of wheel size, tires, offset, spacers, coilovers, camber and …

Master wheel sizing concepts with our comprehensive guide covering diameter, width, offset, backspacing, bolt patterns, and hub bore measurements for proper fitment on any vehicle.

Use our tire size calculator to calculate the diameter, width, sidewall, circumference, and revolutions per mile of any tire. Just type in a metric or standard size tire and click calculate.

Wheel and tire size calculator and fitment guide listing all car and truck models, OEM sizes, options, rim offset, lug nuts and center bore.