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Wheel & Tire Fitment Guide

Your step-by-step guide to getting the perfect fitment.

About This Guide

Choosing new wheels and tires can be complex. This comprehensive guide walks you through the process step-by-step. Learn how to analyze your current setup, explore new tire and wheel sizes using tools like Plus Sizing and Tire Comparators, understand critical wheel fitment aspects such as offset, backspace, and clearance (using our estimators), and finally, check for impacts on speedometer accuracy and gearing. This guide links to various TireCalculatorHub tools to help you make informed decisions.

Choosing the right wheels and tires involves several factors. This guide helps you combine our specialized calculators to make an informed decision.

1Understand Your Current Setup & Goals

Start by knowing your current tire size. You can find this on your tire's sidewall. Also note your wheel's width and offset if possible. Use our tools to analyze your setup:

Universal Tire Converter

Enter your stock tire size (e.g., 225/45R17) to get its full dimensions.

Overall Tire Height Calculator

If you only have specs, calculate the current overall diameter.

Consider what you want to achieve: A different look? Better performance? Larger wheels?

2Exploring New Tire Sizes

Once you have a goal (e.g., moving from 17" to 18" wheels), explore compatible tire sizes. The key is to keep the new tire's overall diameter as close as possible (ideally within 3%) to the original size.

Plus Sizing Options Calculator

Find tire sizes for larger wheels while keeping overall diameter similar.

Tire Size Converter & Comparator

Compare your current size to a potential new size side-by-side.

3Checking Wheel Fitment

With a target tire size, ensure your wheels will fit:

Ideal Rim Width Calculator

Check if your chosen tire width is ideal for your planned rim width.

Wheel Offset & Backspace

Understand and convert between offset and backspace.

Wheel Clearance Estimator

Estimate how new tire sizes AND wheel offsets affect clearance.

Tire Stretch / Pinch Calculator

Assess if your tire will be stretched or pinched on the rim.

4Final Checks & Considerations

Speedometer Error Calculator

See how new tire diameter affects speedometer accuracy.

Effective Gear Ratio Calculator

Understand how tire size changes impact gearing.

AI Tire Advisor

Get AI-powered tire suggestions for your vehicle and driving style.

Spare Tire Compatibility

Ensure your spare tire is still compatible with your new setup.

Remember, these tools provide estimates. Always consult with a professional tire and wheel fitter before making any purchases or modifications to your vehicle.

Disclaimer

All tools and information provided on TireCalculatorHub are for informational purposes only. Always consult with a qualified professional before making decisions about your vehicle's tires or modifications.

TireCalculatorHub is not liable for any damages or issues arising from the use of information or tools on this website.