Wheel Fitment
Calculate offset and wheel position
Current Wheel
in
in
mm
New Wheel
in
in
mm
Results
Outward shift
+16.4 mm
Inner clearance change (strut/spring)
+3.6 mm
Track width change
+20.0 mm
New backspacing
+130.3 mm
How the offset sits (rim cross-section)
Wheel shift:+16.4 mm
Hub mounting faceWheel centreline (offset 0)Outward (toward fender)Inward (toward strut/spring)
Note
- Results are based on offset/backspacing math only — they do not guarantee physical clearance.
- Always verify fitment against your vehicle and wheel/tire before installing.
All Tools
Tire Size Calculator
Calculate and compare tire sizes
Plus / Minus Sizing
Find a matching size for a new wheel diameter
Wheel Fitment
Calculate offset and wheel position
Unit & Tire Converter
Convert units and tire sizes
Comparison & Reports
Compare multiple sizes and generate a report
Speedometer Error
Calculate speed reading deviation

