Winter Tire Calculator
Winter tires outperform summer tires below 7 °C, even on dry roads. Enter your typical winter temperature and driving conditions to get a clear recommendation and timing guide.
How it works
The "7 °C rule": summer tire rubber hardens below 7 °C and loses grip, while winter rubber stays flexible. If your area regularly sits below 7 °C or sees snow, a winter (or all-season rated) set is the safer choice.
Frequently asked questions
Is it really dangerous to use summer tires in winter?
Below 7 °C summer tires harden, extending braking distance even on dry roads, and they grip poorly on snow. In snow and ice the difference is dramatic.
When should I fit them?
Fit winter tires when the average daily temperature stays below 7 °C — typically late October to early November in central Europe — and remove them when it rises again in spring.