Brake Pad Life
Estimate remaining brake pad miles from wear and original life.
About Brake Pad Life
Worn thickness is measured between the new and minimum limits, then scaled against the typical life of a set of pads. Brakes are a safety system, so tracking pad wear tells you when thin material risks metal-on-metal contact.
Formula
Brake Pad Life
Remaining = pad life x (current - minimum) / (new - minimum)
- minimum thickness
- Safe limit, tires mount brakes at or below this
Worked example
With the default values below, Brake Pad Life returns Miles Remaining of 17,500. Change any input above and every figure here is recalculated in your browser.
Inputs used
- New pad thicknessminimum 0.1 mm
- 10 mm
- Current thicknessminimum 0 mm
- 6 mm
- Minimum thicknessminimum 0 mm
- 2 mm
- Typical pad lifeminimum 1 mi
- 35,000 mi
Results
- Miles Remaining
- 17,500 mi
- Wear
- 50.0%
- Status
- About half worn
Step by step
- 1Values used
- 2Brake Pad Life
- 3Miles Remaining= 17,500 mi
- 4Wear= 50.0
- 5Status= About half worn
Assumptions and limits
- The result is derived only from the 4 inputs listed above. Anything not among them is not part of the calculation.
- In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
- Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.
Frequently Asked Questions
How is Brake Pad Life calculated?
Remaining = pad life x (current - minimum) / (new - minimum) Worn thickness is measured between the new and minimum limits, then scaled against the typical life of a set of pads.
Why does Brake Pad Life matter?
Brakes are a safety system, so tracking pad wear tells you when thin material risks metal-on-metal contact.
What values do I need to enter?
This calculator takes 4 inputs: New pad thickness, Current thickness, Minimum thickness, Typical pad life. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.