Wheel Poke Calculator

How much further out a new wheel sticks past the fender compared with the current one.

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

Poke is how far the wheel sticks out toward the fender: the more it grows, the closer the wheel gets to flush or beyond. The result depends on width and offset, not rim diameter; tire height and bodywork decide whether it rubs.

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