Enter your wheel width and offset to instantly calculate backspacing — or work backwards from backspacing to offset.
Enter your wheel specs
Enter your wheel specs
Backspacing
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Wheel Width
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Offset
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Backspacing
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Offset & Backspacing Diagram
Offset is the distance in millimeters from the wheel's mounting surface to its true centerline. Negative offset pushes the wheel outward for a more aggressive, poke stance. Positive offset pulls it inward toward the suspension.
Backspacing measures the distance (in inches) from the wheel's mounting surface to its inner edge. Getting this number wrong can cause your wheel to rub control arms or brake calipers — always confirm before ordering.
