What’s Good Mileage on a Used Car? A Complete Guide

Good mileage on a used car is roughly 12,000 miles per year of the vehicle’s age. A 5-year-old car with 60,000 miles falls right on that benchmark. But mileage alone doesn’t tell the whole story — maintenance history, number of owners, and vehicle type matter just as much.

Key Takeaways

• The 12,000-miles-per-year rule is your baseline for evaluating any used car.
• High mileage isn’t automatically bad — a well-maintained car at 150K often beats a neglected one at 60K.
• Always pair mileage with a vehicle history report and a pre-purchase inspection.
• Electric vehicles follow different mileage rules — battery health matters more than odometer reading.
• Certified pre-owned vehicles solve mileage anxiety with warranty-backed peace of mind.

How to Calculate Good Mileage for a Used Car

Quick Answer: Multiply 12,000 by the car’s age. That’s the expected mileage for an average driver.

The 12,000-miles-per-year figure is a widely accepted industry baseline used by insurance companies, dealerships, and lease agreements — not an official government average. In fact, the Federal Highway Administration reports that the actual average U.S. driver logs between 13,400 and 14,300 miles per year, depending on age and demographics. The 12,000-mile benchmark is intentionally conservative, which is why it remains useful as a starting point for buyers: it sets a reasonable floor, not a precise target. A car that’s 7 years old should have approximately 84,000 miles by this standard. One sitting significantly above or below that number deserves a closer look.

Here’s a quick reference table:

Note on model years: Because cars are sold in the fall before the calendar year, a “2018 model” was typically first driven in late 2017. Adjust accordingly when applying this table.

Mileage, however, is only one data point. A car can have 40,000 miles and still be a poor buy — or 130,000 miles and be an excellent one. Here’s why.

Does the Number of Owners Affect Mileage Value?

Yes — significantly. Multiple ownership changes are a warning sign, regardless of the mileage.

Consider two scenarios we see regularly at our dealership:

Scenario A: A 10-year-old sedan with 90,000 miles and four previous owners. On paper, the mileage looks reasonable. In practice, at least one of those owners likely skipped oil changes, deferred repairs, or drove the car hard without maintenance.

Scenario B: A 10-year-old SUV with 30,000 miles and one previous owner — a retired couple who drove primarily on weekends. The service history is spotless, the interior shows minimal wear, and the vehicle spent winters in a heated garage.

Scenario B is typically the better buy, even though it’s “old” by calendar standards. Always pull the vehicle history report (Carfax or AutoCheck) to verify owner count and service records before negotiating.

How Many Miles on a Used Car Is Too Much?

Quick Answer: There is no universal “too many miles” threshold — but any car exceeding 15,000+ miles per year of its age warrants careful scrutiny.

Modern vehicles, built with better materials and tighter tolerances than cars from 20 years ago, routinely reach 200,000 miles with proper care. The key question isn’t “how many miles?” — it’s “how were those miles driven and maintained?”

That said, here are practical thresholds to use when shopping:

• Under 100K miles: Generally lower risk for most makes and models.
• 100K–150K miles: Can be a great value if maintenance records are solid and the vehicle passes inspection.
• 150K–200K miles: Repair costs may begin to increase. Price accordingly.
• 200K+ miles: Proceed with caution unless the specific model is known for high-mileage durability.

How Many Miles on a Used Car Is Too Little?

Quick Answer: Unusually low mileage can be a red flag, not just a bargain.

A car with very low mileage for its age — say, 15,000 miles on an 8-year-old vehicle — raises two questions:

1. Is the odometer accurate? Review the vehicle history report. If service records show odometer readings consistent with the current number, it’s likely correct.
2. Has the car been sitting unused? Vehicles that aren’t driven regularly can develop dry seals, stale brake fluid, degraded gaskets, and flat-spotted tires — problems that don’t show on an odometer.

If you verify the low mileage is legitimate, have the vehicle inspected by a qualified mechanic before purchase. A pre-purchase inspection typically costs $100–$200 and can save thousands. Unlike some states, Minnesota does not require safety or emissions inspections for used passenger vehicles before sale — so that independent inspection is entirely on you to arrange.

Is It Smart to Buy a High-Mileage Used Car?

In many cases, yes. Here’s why high-mileage vehicles can be smart buys:

The depreciation curve has already flattened. A new car loses roughly 20% of its value in the first year alone. By the time a car reaches 80,000–100,000 miles, the steepest depreciation is behind it. You’re buying a vehicle at a fraction of its original cost.

Driven cars are better lubricated. Engines that run regularly circulate oil continuously, preventing the sludge buildup that plagues low-mileage vehicles that sit idle. Regular driving also burns off carbon deposits that would otherwise accumulate.

Modern cars are built to last longer. The average age of vehicles on U.S. roads is now over 12 years. That means manufacturers are engineering cars to handle higher mileage as a matter of course.

If mileage risk is a major concern, a certified pre-owned vehicle offers a manufacturer-backed warranty and a multi-point inspection. See the full list of certified pre-owned benefits to understand what protections come standard.

Why Maintenance History Matters More Than Mileage Alone

A car’s odometer tells you how far it’s been driven. Its service history tells you how well it’s been cared for.

Two cars with identical mileage can be in completely different mechanical condition depending on whether the previous owner followed the recommended Kia maintenance schedule — oil changes every 5,000–7,500 miles, transmission fluid replacement, brake inspections, and timing belt or chain service at manufacturer-specified intervals.

When reviewing a vehicle history report, look specifically for:

1. Regular oil change intervals (no gaps longer than 6–9 months)
2. Evidence of major service milestones (30K, 60K, 90K mile services)
3. No title issues — salvage, flood, or lemon law buyback designations
4. Consistent odometer readings across service visits

Missing service records aren’t always a dealbreaker — but they do change the risk math, and they give you leverage in price negotiations.

What About Electric Vehicle Mileage?

The 12,000-miles-per-year rule applies differently to electric vehicles.

EVs have far fewer mechanical components than gas-powered cars — no oil changes, no transmission fluid, no timing belts. As a result, high mileage is less of a concern mechanically. What matters most for used EVs is battery health, not odometer reading.

When evaluating a used EV:

• Request the battery health report or state-of-health (SOH) percentage if available.
• Check whether the battery is still under the manufacturer’s warranty (most cover 8 years/100,000 miles).
• Understand the car’s typical charging history — frequent DC fast charging accelerates battery degradation more than Level 2 home charging.

A used EV with 80,000 miles on the odometer but 92% battery health is often a better buy than one with 50,000 miles and 78% battery capacity.

Should You Get a Pre-Purchase Inspection?

Yes — always, for any used car purchase.

A pre-purchase inspection (PPI) from an independent mechanic is one of the highest-ROI steps a used car buyer can take. It typically costs $100–$200 and gives you an unbiased assessment of the vehicle’s current condition.

A thorough PPI covers:

1. Body and finish (rust, panel gaps, signs of accident repair)
2. Glass, mirrors, and lights
3. Engine and fluid conditions
4. Brake wear and rotor condition
5. Tire depth and wear pattern
6. Control system scan (OBD-II codes)
7. Test drive assessment

One important note for Minnesota buyers: the state does not mandate safety or emissions inspections for used passenger vehicles prior to sale. Used cars are generally sold as-is under Minnesota law unless covered by an explicit dealer or manufacturer warranty. That makes arranging your own independent PPI even more important — there is no state-required safety net to fall back on.

Frequently Asked Questions

What is considered good mileage on a used car?

Good mileage on a used car is approximately 12,000 miles per year of the vehicle’s age. A 5-year-old car with 60,000 miles sits right at that benchmark. Mileage significantly above this average — especially without documented maintenance — increases your risk of near-term repairs.

Is 90,000 miles a lot for a used car?

No — 90,000 miles is not inherently a lot for a modern used car. A vehicle that’s 7–8 years old with 90,000 miles is right around average mileage. Whether it’s a good buy depends on its service history, number of previous owners, and results of a pre-purchase inspection. Many well-maintained vehicles run reliably well past 150,000 miles.

How many miles should a 2018 car have in 2025?

A 2018 vehicle is approximately 7–8 years old in 2025. Applying the 12,000-miles-per-year rule, expected mileage is roughly 84,000–96,000 miles. Anything significantly above 110,000 miles or below 50,000 miles warrants additional scrutiny.

Is it worth buying a car with over 100,000 miles?

Yes, in many cases. A car with 100,000–150,000 miles that has documented maintenance, a clean vehicle history report, and passes a professional inspection can deliver years of reliable service at a fraction of the cost of a low-mileage equivalent. The steepest depreciation hit has already occurred, so you get better value per dollar.

Does mileage matter more than age on a used car?

Neither matters more in isolation — both work together. A low-mileage car that’s 12 years old may have aged rubber seals, dry gaskets, and stale fluids regardless of its odometer. A higher-mileage car that’s only 5 years old may be in excellent mechanical condition. Evaluate mileage, age, maintenance history, and number of owners as a complete picture.

Ready to Find a Well-Maintained Used Car in Rochester, MN?

At Tom Kadlec Kia in Rochester, Minnesota, every pre-owned vehicle in our inventory comes with a reviewed vehicle history. Our sales team can walk you through mileage, service history, and ownership background on any vehicle you’re considering.

Browse our certified pre-owned inventory or stop in for a test drive today.