Wheel Offset Calculator
Calculate wheel offset differences, backspacing, and check fender clearance for new wheel fitment.
Current Wheel Setup
New Wheel Setup
Clearance Settings
Fitment Status
Should Fit
Clearance looks good on both sides.
Position Changes
Outer Edge Movement+7.7mm outward
Inner Edge Movement+17.7mm outward
Stance Change (per side)+7.7mm
Backspacing
Current
2.43"
New
3.12"
Change
+0.70"
Recommended Offset Range
For a 9" wheel with similar fitment:
ET27 to ET45
Fender Clearance Estimate
Estimated remaining clearance:17.3mm
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Editorial Note
MyCalcBuddy Editorial Team
This page is maintained as an educational calculator reference.
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Formula Source: Standard Mathematical References
by Various
🔄Last reviewed: May 2026
✓Formula checks are based on standard references and internal QA review.