Auto Tools

Wheel Offset Calculator

Compare wheel setups and estimate inner-clearance and outer-poke changes from width and offset differences.

Updated April 11, 2026
Free online tool
Planning and research use

Why this page exists

Wheel fitment is easier to compare when width and offset changes are translated into inside and outside position changes. This calculator helps visitors compare an old wheel setup with a new one and estimate how the inner clearance and outer poke may shift.

Interactive tool

Run the estimate

Enter your numbers and read the result first, then use the sections below to understand what affects the outcome.

Calculator

Wheel offset calculator

Compare two wheel setups and estimate inner-clearance and outer-position changes.

Result

32.1 mm more poke

Estimated inner-clearance and outer-position changes between the old and new wheel setup.

Inner clearance change6.0 mm closer inside

Outer poke change32.1 mm more poke

Old wheel setup8.0 in / 35 mm

New wheel setup9.5 in / 22 mm

8.0-inch wheels at 35 mm compared with 9.5-inch wheels at 22 mm changes the inside position by about 6.0 mm.
On the outside, the wheel face shifts by about 32.1 mm relative to the old setup.
Use this as a quick fitment comparison only, because tire width, suspension, brake clearance, and body shape still matter in the real-world fit.

This is a fitment estimate only. Tire size, suspension geometry, brake clearance, camber, and fender shape can all change whether a setup really fits.

Planning note

Last updated April 11, 2026. Use this tool to compare scenarios and plan ahead, then confirm important details with the lender, employer, insurer, contractor, or other qualified provider involved in the final decision.

How it works

What the calculator is doing

Enter the old wheel width and offset, then the new wheel width and offset.

The calculator converts widths to millimeters and compares the inside and outside wheel position between the two setups.

It shows how much closer or farther the new setup sits on the inside and how much more or less it pokes on the outside.

Understanding your result

This is a fitment comparison tool, not a guarantee that the setup will fit. Tire size, suspension clearance, brake clearance, bodywork, and alignment still matter in the real-world outcome.

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Examples

Ways people use this tool

Example scenarios help turn a quick estimate into a more useful comparison or planning step.

Compare a wider wheel with a lower offset

This helps show how much more inside clearance is lost and how much farther the wheel may sit outward.

Check whether a new setup changes poke noticeably

Outer position can be one of the fastest ways to understand how the new wheels may sit visually.

Use the estimate as a quick fitment screen

The comparison is useful as a first pass before checking tire size, suspension, and fender clearance in detail.

FAQ

Common questions

What does inner clearance change mean?

It shows how much closer the new wheel sits toward the suspension or how much additional inside clearance it creates compared with the old setup.

What does outer poke change mean?

It shows how much farther outward or more tucked in the new wheel sits relative to the old setup.

Does this guarantee the wheels will fit?

No. Tire size, brakes, suspension, fender clearance, and alignment can all change the real-world fitment result.

Related tools

Keep comparing

Use these related tools to compare nearby scenarios, check a second estimate, or keep narrowing down the right decision.

Auto ToolsUpdated April 11, 2026