Tire Wear & Replacement Calculator
Predict how many months remain before your tires reach minimum safe tread depth and plan out the cost of new tires.
Additional Information and Definitions
Current Tread Depth (32nds of an inch)
Enter your tire's current tread depth in 32nds of an inch. For example, new tires often start at around 10/32 to 12/32 of an inch.
Minimum Safe Tread Depth
The minimum recommended safe tread depth, typically around 2/32 of an inch. Once below, the tires should be replaced.
Miles Driven per Month
Average miles you drive each month. Used to estimate how fast tread is worn.
Tread Wear per 1000 Miles (32nds)
How many 32nds of an inch of tread wear per 1000 miles. This depends on tire quality and driving conditions.
Cost per Tire ($)
Average price for one new tire, excluding installation fees.
Number of Tires
Usually 4, but could be 2 if replacing only a pair. Some vehicles have more specialized needs.
Plan Your Next Tire Purchase
Avoid sudden tire expenses—see when you’ll need replacements.
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Key Tire Terms
Understand these tire-related concepts:
Tread Depth:
Measurement of how much usable rubber remains on the tire. More depth generally equals better traction.
Minimum Safe Tread:
A recommended lower limit for tire usability. Falling below it greatly compromises traction and safety.
Tread Wear Rate:
Specifies how quickly tires lose tread under normal conditions, typically expressed in 32nds per 1000 miles.
Replacement Budget:
The amount set aside to cover new tires, balancing safety and financial planning.
5 Curious Facts About Tire Longevity
Tires might seem straightforward, but there's more than meets the road. Check out these tire insights:
1.Rubber Compounds Matter
High-performance tires often use softer rubber for better grip, wearing faster. In contrast, touring tires use harder compounds for longevity.
2.Weather Impacts Wear
Extreme heat can accelerate tread loss. Cold conditions keep rubber stiffer, which sometimes reduces wear but can affect traction.
3.Inflation Levels Are Critical
Both under-inflation and over-inflation cause uneven tread wear. Proper inflation helps extend tire life and improve fuel efficiency.
4.Rotation Frequency
Rotating tires regularly helps distribute wear more evenly. Many vehicle manufacturers recommend rotation every 5,000 to 7,500 miles.
5.Age Over Mileage
Even with minimal usage, tires degrade over time due to oxidation. Many experts suggest replacing tires older than 6 years for safety.