Tyre tread-life calculator

How much tread life is left?

Estimate remaining tyre life from your wear so far: the wear rate is the tread lost divided by the distance driven. From the current depth, the remaining mileage to the 1.6 mm legal limit is (current − 1.6) ÷ wear rate. For example, 3 mm lost over 30,000 km is 1 mm per 10,000 km, leaving about 34,000 km from a 5 mm tread.

New tread depth (mm)5 mm / 8 mm
Current tread depth (mm)1.6 mm
Wear rate
1 mm / 10k km
Distance to 1.6 mm
34,000 km
Estimated total life
64,000 km

Estimate assumes even wear; replace by 1.6 mm (legal) — many recommend 3 mm in the wet.

Worked examples

Tread-life estimates are useful only when they start from a measured wear interval. These examples show how quickly the projection changes.

New treadMeasured treadDistance measuredWear rateTo 1.6 mm
8.0 mm5.0 mm30000 km1.00 mm / 10k km34000 km
7.5 mm4.0 mm35000 km1.00 mm / 10k km24000 km
7.0 mm4.0 mm18000 km1.67 mm / 10k km14400 km

What to do with it: Recheck sooner if alignment, pressure or driving conditions change.

More tools

Methodology

Last reviewed: 2026-06-28
What changed
  • Reviewed deterministic geometry, load/speed references, sitemap inclusion and localized page shell.