Tire & Wheel Calculators

Free browser-based tools for comparing tire and wheel dimensions — tire size, tire diameter, and wheel offset. No install, no account, nothing uploaded. Every calculation runs locally in your browser.

• Tire Size Calculator

  Compare two tire sizes and see diameter, circumference, speedometer and clearance differences.

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• Wheel Offset Calculator

  Compare wheel widths and offsets to estimate inner clearance and outward position changes.

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• Tire Diameter Calculator

  Convert a metric tire size into overall diameter, sidewall height and circumference.

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