how many miles is good on a used car

[ColtonLynn]

There's no single "good" mileage number for a used car, as it depends heavily on the vehicle's age, maintenance history, and model. A more useful metric is average annual mileage, which is around 12,000 miles. A car that's consistently below this average is generally considered to have lower wear and tear. For example, a 5-year-old car with 50,000 miles (10,000 miles/year) is often a better bet than a 3-year-old car with 75,000 miles (25,000 miles/year).

The most critical factor is a verifiable and consistent service history. A well-maintained car with 120,000 miles can be a more reliable purchase than a neglected one with 60,000 miles. Look for records of routine oil changes, tire rotations, and brake services.

Here’s a general guideline based on age and mileage, assuming average use:

Vehicle Age	Excellent Mileage	Good/Acceptable Mileage	High Mileage	Key Consideration
3 Years Old	Under 30,000 mi	30,000 - 40,000 mi	Over 45,000 mi	Often still under factory warranty.
5 Years Old	Under 50,000 mi	50,000 - 70,000 mi	Over 80,000 mi	Check for major service intervals (e.g., timing belt, transmission fluid).
7 Years Old	Under 75,000 mi	75,000 - 100,000 mi	Over 110,000 mi	Focus on rust prevention and component wear (suspension, exhaust).
10+ Years Old	Under 100,000 mi	100,000 - 140,000 mi	Over 150,000 mi	Prioritize overall condition and maintenance records over the odometer.

Ultimately, prioritize a thorough pre-purchase inspection by a trusted mechanic. They can assess the true condition of the engine, transmission, and chassis, which matters far more than the number on the dashboard.

[LaFelicity]

I don't get hung up on a specific number. I look for a sensible average—about 10,000 to 12,000 miles per year. A five-year-old car with 55,000 miles? That tells me it was probably used for sensible commuting, not constant cross-country trips. I'm way more interested in the service records. A one-owner car with a folder full of oil change receipts at 100,000 miles is way more appealing than a two-owner car with no history at 60,000 miles. The paperwork tells the real story.

[DeBraxton]

The odometer is just one piece of the puzzle. How those miles were accumulated is what counts. A car that spent its life on smooth highways has endured far less stress than one that navigated pothole-ridden city streets for half the distance. I always ask about the primary use. Also, I check the wear items you can see and feel: the brake pedal, the driver's seat bolster, and the steering wheel. These often reveal more about the car's actual use than the digital readout ever could.

[McLucy]

I've bought and sold a lot of cars, and I've learned that brand reputation is huge here. A Toyota or Honda with 120,000 miles that's been cared for is just getting broken in. But a luxury European model with the same mileage might be approaching some very expensive scheduled maintenance. So, "good" mileage is relative to the make and model. Do your homework on common issues for that specific car at the 100,000-mile mark. That research will tell you if the asking price is fair for the potential headaches down the road.

[LeAsher]

Modern cars are built to last much longer than those from 20 years ago. Seeing 150,000 miles on a well-kept vehicle from the last decade isn't the red flag it used to be. The key is proof of proper maintenance. Was the timing belt changed? Has the transmission fluid been serviced? These are the questions that matter. A high-mileage car that has had these major services done is often a smarter buy than a lower-mileage car where that critical maintenance is looming and unpaid for.