Tire Tread Life Calculator
Tire Tread Life
Estimate remaining tire life and replacement timeline based on current tread depth, wear rate, and driving habits.
Formula
Wear Rate = Miles Driven / Tread Worn (32nds); Miles Remaining = Usable Tread Left x Wear Rate; Usable Tread Left = Current Depth - Minimum (2/32)
Frequently Asked Questions
What is the minimum safe tread depth?
The legal minimum is 2/32 of an inch in most states, but tire performance drops significantly below 4/32. In rain, tires with less than 4/32 tread have substantially reduced grip.
How do I measure tread depth?
Use a tread depth gauge or the penny test. Insert a penny head-first into the tread. If you can see all of Lincoln head, your tread is below 2/32 and tires need replacement.
Do front tires wear faster than rear tires?
On front-wheel-drive vehicles, front tires typically wear faster due to steering and drivetrain forces. Regular rotation every 5,000 to 7,500 miles helps equalize wear across all four tires.