Wheel Fitment Calculator

Tool / Fitment

WHEEL
FITMENT
CALC

Select your car. We calculate the full front + rear wheel setup for your widebody build — offset and width accounted for both axles separately.

01 — Your vehicle

Make

Model

Generation / Years

02 — How much the widebody kit or overfender adds from stock arch (per side)

Front (mm)

Rear (mm)

03 — Stock specs (auto-filled · editable)

Front axle

Width (in)

Diameter (in)

ET (mm)

Rear axle

Width (in)

Diameter (in)

ET (mm)

You can adjust wheel width — offset will recalculate automatically.

These calculations are approximate and are not a directive for action. Always consult your wheel supplier before purchasing.

F+R

Select your car to get full setup

...

Fetching stock specs

Recommended wheel setup

FRONT—

Width

—"

ET Offset

—mm

Diameter—"

Bolt pattern—

REAR—

Width

—"

ET Offset

—mm

Diameter—"

Bolt pattern—

Adjust — width ↔ offset tradeoff

Front axle

Width—"

ET—mm

Rear axle

Width—"

ET—mm

Fitment style

            TUCKED — sits inside arch like stock  · 
            FLUSH — 15mm wider than stock position  · 
            H/FLUSH! — hella flush, 25mm, use with caution. Better to catch with spacers.
          

Math breakdown

Front

Kit—

Width—

ET—

wET

Rear

Kit—

Width—

ET—

wET

Stock reference

F Width

—

R Width

—

F ET

—

R ET

—

F Dia

—

R Dia

—

Bolt pattern

—

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