Tire Age Calculator | YourAgeCalculator

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📊 Your Results

📖 How It Works

Tire age is determined by the DOT code printed on the sidewall of every tire. The last four digits of this code reveal the exact manufacture date: the first two digits are the week and the last two are the year. For example, a DOT code ending in 2319 means the tire was built in the 23rd week of 2019.

Tires degrade over time even if they are never driven. Heat, oxygen, and ultraviolet light slowly break down the rubber compounds, causing cracks, hardening, and loss of grip. This aging process, often called dry rot, means a 10-year-old tire can be unsafe regardless of how much tread it has left.

That is why the National Highway Traffic Safety Administration (NHTSA) recommends replacing all tires 6 to 10 years after their manufacture date — even when the tread still looks good. Some tire manufacturers advise replacement after just 6 years, so check both your tread depth and your tire's age.

💡 Why It Matters

⚠️ Safety First

Aging tires are a leading cause of blowouts and tread separations, especially at highway speeds. An old tire can fail without warning, so knowing its age is a critical part of vehicle safety.

🔍 Check Your DOT Code

Look for "DOT" followed by a string of characters on the tire sidewall. The last four digits give the manufacture date — week and year. Tires made before 2000 use a three-digit code, which means they are far too old to be safe.

💰 Save Money & Stay Safe

Knowing your tire age helps you plan replacements before a failure forces one. Buying new tires on your own schedule lets you shop for deals and avoid expensive emergency roadside costs.

📊 Tire Age Safety Chart

Tire Age	Recommendation
1-2 years	New — excellent condition
3-5 years	Good — inspect annually
6-9 years	Replace recommended
10+ years	Replace immediately

Note: NHTSA recommends replacing tires that are 6-10 years old regardless of tread depth.