Fitment Industries Wheel & Tire Clearance Calculator
Looking to upgrade your stance and want to make sure you have enough room? Use this calculator to make sure your future setup will fit!
To start, plug in your current wheel width, offset, height, width, and diameter in comparison to a new setup, and it will give you the difference in clearance and positioning.
Wheel & Tire Size Comparison Calculator
Compare Your Current Setup to Your Next One
Upgrading wheels and tires isn’t just about picking a size that looks good — it’s about knowing exactly how that new setup will change your fitment.
A different wheel width, tire size, or offset can affect:
- Inner suspension clearance
- Outer wheel position
- Overall tire diameter
- Vehicle ride height
- Speedometer accuracy
This calculator lets you compare your current setup vs. your new setup side-by-side.
Just enter:
- Current wheel and tire specs
- Your new wheel and tire specs
The calculator will instantly show the differences in:
- Inner clearance
- Outer wheel position
- Overall tire height
- Overall tire width
Why These Numbers Matter
- Inner Clearance Shows how much space exists between your wheel and suspension components. Too little clearance can cause rubbing on control arms, struts, or brake hardware.
- Outer Position Tells you how far the wheel will sit relative to the fender. This determines whether your setup will run flush, tucked, or with poke.
- Overall Tire Height Changes in tire diameter affect speedometer readings, gearing, and ride height.
- Overall Width Wider setups can improve grip and stance — but may require fender clearance or suspension adjustments.
This tool is especially helpful when you're:
- Jumping from 17s to 19s or 20s
- Running wider wheels
- Increasing tire diameter on trucks or SUVs
- Trying to maintain clearance while gaining width
You can also use the “Vehicles With These Specs” buttons to see real builds running the same setup — one of the easiest ways to validate your fitment before buying.
Compare your setup now and see exactly what changes before you commit.