Wheel Width & Offset Comparison

Compare two wheels: change in poke, inner clearance, offset and width.

Formula

Front spacing (poke) = Wheel width (inches)/2 − Offset / ET (mm)/25,4 ; Δ = New − Current

Assumptions

Assumption: a 0.5-inch flange allowance is added, matching most wheel-fitment calculators.

How to read it

Read both changes together: poke tells you what happens at the fender, inner clearance what happens at the suspension. A wider wheel with the same offset grows on both sides at once; a lower offset shifts everything outward.

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Next tools

Tires & wheelsWheel Poke CalculatorHow much further out a new wheel sticks past the fender compared with the current one.Calculate →Tires & wheelsWheel Inner Clearance CalculatorHow much closer to (or further from) the suspension a new wheel sits compared with the current one.Calculate →Tires & wheelsTire Size ComparisonCompare two tire sizes side by side: diameter, ground clearance and speedometer impact.Calculate →