Easily compare tire and wheel specifications for upgrades. Calculate equivalent sprung weight differences and get safe, performance-enhancing recommendations. Supports both Imperial and Metric units.
2.4.0
July 28, 2026
• Adds motorcycle metric, inch, alphabetic and ATV/UTV sizing • Adds LT/high-flotation direct-diameter sizing • Expands passenger/LT metric entry to 125–405 widths and 20–85 profiles • Adds exact legacy full-profile sizing, including applicable 82-series equivalents • Adds a consolidated Size Guide with format limits and safety guidance • Fixes the recommended-size dropdown so it can be opened again immediately after a selection • Retains four-wheel unsprung-weight and rotational-inertia modeling for car and LT comparisons
MoreAdded support for this in 2.4.0.
在2.4.0版本新加入了摩托车轮胎尺寸的支持。
Tire Size Calculator is a paid app, priced at $2.99. This one-time purchase grants access to all features without additional costs.
No, Tire Size Calculator is ad-free. Users can enjoy a seamless experience without any advertisements interrupting their calculations.
Tire Size Calculator is a universal app that works on iPhone, iPad, and iPod Touch. You do not need to pay twice for different devices.
The app was last updated on November 28, 2024, with version 2.3.0. This indicates regular updates to maintain compatibility and potentially add new features.
Yes, you can compare tires with detailed specs in both Imperial and Metric units. The app provides scaled visual graphs to show differences in tire dimensions.
The app can calculate approximate equivalent car chassis (sprung) weight differences after changing tires and wheels. This helps quantify potential performance improvements.
Tire Size Calculator has an age rating of 4+. This suggests it is suitable for a wide range of users, including younger individuals interested in automotive topics.
Yes, you can adjust variables such as rim diameter difference, section width difference, and tolerable tire circumference difference when getting recommended upgrade sizes.
