Wheel Offset Calculator
Compare current vs new wheel width & offset to see poke, tuck, backspacing and clearance instantly.
Open the calculatorThe blue line is the mounting face. The further it sits toward the street side (positive), the more the wheel tucks in; toward the brake side (negative), the more it pokes out.
How to read the results
A positive outer edge result means more poke (flusher stance, watch the fender). A positive inner edge result means the wheel moves toward your strut and control arm - check clearance. Want the full explanation? Read our wheel offset guide.
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Wheel offset FAQ
What is wheel offset?
Wheel offset is the distance (in mm) between the wheel's mounting hub face and its centerline. Positive offset means the mounting face sits toward the street side, pulling the wheel inward; negative offset pushes the wheel outward for a more aggressive, poked stance.
What is the difference between offset and backspacing?
Offset is measured from the centerline in millimeters; backspacing is measured from the back lip to the mounting face in inches. They describe the same geometry two different ways - our calculator shows both.
Does lower offset stick the wheels out?
Yes. Lowering offset (or going more negative) moves the wheel outward - more poke and a flusher fender fit, but watch for rubbing. Use the calculator to see exactly how far the outer edge moves.
How does offset affect rubbing?
Offset changes where both the outer and inner edges of the wheel sit. Too much poke can rub the fender; too little can rub the strut or control arm. The calculator flags both directions.