MAKSTTON · WHEEL KNOWLEDGE
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MAKSTTON WHEEL KNOWLEDGE

MAKSTTON Wheel & Tire Calculator

By Binghua Yang · September 2026

MAKSTTON created this wheel and tire calculator to help you plan a new setup with confidence. Compare current and target wheel sizes, calculate wheel-flush and tire-flush ET values, see changes in wheel position and suspension clearance, and get tire-size recommendations with diameter differences. You can also learn what flush wheel fitment means. For accurate results, first learn how to measure wheel-to-fender clearance · View full tutorial →, then enter your current setup and target wheel size.

01

Measure · Compare · Decide

Calculate Your Wheel Fitment

FRONT AXLE
Current Setup *
New Setup

Measure both sides; enter the smaller wheel-to-fender value.

Tire Data (Optional)
Current Setup *
New Setup

Measure both sides; enter the smaller wheel-to-fender value.

Tire Data (Optional)

Defaults to 5 mm. Enter your measured value, or enter 0 to calculate wheel position only.

mm

Optional. Used to estimate the minimum load rating required for each wheel.

kg
Binghua Yang

Binghua Yang | Product Development Manager

Technical data: Renbing Xiong | Technical Department

If you have different technical experience or find an error in this calculator, please email info@makstton.com.

Enter Your Fender Measurements — Example

  • A1: Fender to Rim Edge;
  • A2: Fender to Tire Edge.

For air-suspension vehicles, take and record a separate set of measurements at the highest and lowest ride-height settings.

MAKSTTON plumb-line measurement for A1: Fender to Rim Edge
A1: Fender to Rim Edge.
MAKSTTON plumb-line measurement for A2: Fender to Tire Edge
A2: Fender to Tire Edge.

Save Report Image

On iPhone or iPad, tap Save / Share Image, then choose Save Image or Save to Files. You can also press and hold the preview.

Generated wheel fitment report preview
Download PNG