Tyre Size Calculator

Incorrect sizes can affect safety, fuel efficiency, and handling. Using the right size ensures compliance with manufacturer recommendations.

If you are changing tyre size, input your current tyre size at Original Tyre Size section, and input your desired changing size to New Tyre Size.
For checking your existing tyre size compared to original tyre size, input the original equipped tyre size at Original Tyre Size section, and input your existing tyre size at New Tyre Size section to check the difference of your current vehicle.

Generally, a variation within ±3% of the original tyre diameter is considered safe.

Yes, but ensure the new wheel and tyre combination does not exceed your vehicle’s clearance or suspension limits.

In some regions, non‑standard tyre sizes may affect insurance claims or manufacturer warranty. Always confirm with your provider.

For Front Wheel Drive (FWD) vehicle, the speedometer maybe affected by tyre size changes on the front axle. If you only replace the rear axle with different sizes, it may not affect the speedometer.
It's the same for Rear Wheel Drive (RWD) vehicle. Only changes the front axle with different sizes may not affect the speedometer.
Although Different vehicles may have different sensor location, it's important to take note of the speedometer changes.
For All Wheel Drive (AWD/4WD), no one will change just one axle size.