About Car Tire Size Calc
Compare your current tires and rims to a new setup before you buy. Upgrade with confidence and see exactly how changes affect your vehicle's performance. Tire Size Calculator shows speedometer error, clearance change,...
Compare your current tires and rims to a new setup before you buy. Upgrade with confidence and see exactly how changes affect your vehicle's performance. Tire Size Calculator shows speedometer error, clearance change, sidewall height, circumference, rim offset (ET), and wheel stance shift — with metric or imperial units.
Share or print PDF report with mechanic or friend.
- Speedometer Accuracy: Instantly check speedometer differences to avoid miscalculations.
- Ground Clearance Impact: See how new tire sizes influence your car’s ride height.
- Multiple Unit Support: Choose between Metric and Imperial measurements for convenience.
- User-Friendly Interface: Designed for quick and easy comparisons—no complex formulas required!
Make informed decisions and optimise your vehicle’s performance with precision. Perfect for upsizing wheels, checking plus-sizing, or verifying fitment before installation.
Previous Versions
Here you can find the changelog of Car Tire Size Calc since it was posted on our website on 2019-10-26 11:25:04.
The latest version is 1.4.13 and it was updated on 2026-10-12 18:09:23. See below the changes in each version.
Car Tire Size Calc version 1.4.13
Updated At: 2026-01-19
Changes: Added PDF Export/Print
Car Tire Size Calc version 1.4.11
Updated At: 2025-12-19
Changes: Layout fixes.
Car Tire Size Calc version 1.4.03
Updated At: 2025-08-01
Changes: Bug fixes
Car Tire Size Calc version 1.4.02
Updated At: 2025-05-26
Car Tire Size Calc version 1.4.01
Updated At: 2025-05-21
Changes: Rim width and ET calculation added
Car Tire Size Calc version 1.2.01
Updated At: 2024-02-22
Changes: Royal units are default
Disclaimer
Official Google Play Link
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