Brake Pad Wear Calculator

Estimate brake pad remaining life and replacement intervals based on wear measurements.

Typical new pad: 10-14mm depending on vehicle
Measure at thinnest point of pad material
Typically 2-3mm; check manufacturer specs

Brake Pad Wear Guidelines

Thickness (mm)StatusAction
> 6mmGoodNo action needed
4-6mmFairMonitor closely
3-4mmLowSchedule replacement
< 3mmCriticalReplace immediately

Understanding Brake Pad Wear

Wear Calculation

Wear Rate = (New Thickness - Current Thickness) / Miles Driven
Remaining Miles = (Current Thickness - Minimum Thickness) / Wear Rate

Factors Affecting Brake Wear

  • Driving style (aggressive vs. smooth braking)
  • City vs. highway driving patterns
  • Vehicle weight and load
  • Brake pad compound (ceramic, semi-metallic, organic)
  • Terrain (hills require more braking)

Always inspect both inner and outer pads - they can wear unevenly. Replace pads in axle pairs.