Tire Rotation & Tread Wear Interval Calculator
Tires typically start at about 10/32 inch of tread and are considered worn out at 2/32 inch. Enter your current tread depth, how many miles you've driven on the tires, and your annual mileage to estimate remaining life.
Estimated Miles Remaining
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Tread Worn So Far (32nds)—
Wear Rate (32nds per 1,000 miles)—
Months of Life Remaining—
Total Expected Tire Life (Miles)—
About this calculator
Estimate remaining tire life in miles and months based on current tread depth, wear rate, and average driving distance.
Frequently Asked Questions
What tread depth is considered unsafe?
Most safety experts and many states consider 2/32 inch the legal minimum, though replacing tires closer to 4/32 inch improves wet-weather safety.
How do I measure tread depth?
Use a tread depth gauge or the penny test, inserting a penny into the tread groove to see how much of Lincoln's head is covered.
Does rotation affect this estimate?
Regular rotation helps tires wear more evenly, which can make this estimate more accurate and often extends overall tread life.