How Long Do Running Shoes Last? Miles, Months and Signs to Replace Them

Quick Discussion

How long do running shoes last? Usually 300 to 500 miles, which is about 480 to 800 km. In months, that depends on how far you run: at 15 miles a week, that is roughly 4.5 to 7.5 months. Replace them sooner if the cushioning feels flat, the outsole is worn through to the foam, or new aches appear.

• 300 to 500 miles is the common industry guideline, not the result of a single study.

• The US podiatrists' association, APMA, gives a longer range of 600 to 800 miles, counting walking too.

• Cushioning drops early: about a quarter of shock absorption was gone after 50 miles in one classic lab test.

• There is no good evidence that expensive shoes last longer.

• Rotating two pairs is linked to fewer injuries, but we found no study showing it adds miles to each pair.

On this page: How many miles | Months by weekly mileage | What the research says | Signs they are worn out | How often to replace | 2-year-old shoes | Expensive shoes | Rotation | What wears them out | Walking | Make them last | FAQ

How Many Miles Do Running Shoes Last?

Most running shoe brands and retailers say to replace running shoes every 300 to 500 miles. Nike, REI, Fleet Feet and Runners Need all use that range. Racing shoes tend to sit at the low end and well-built daily trainers at the high end. Your body, stride and running surface move you up or down the range.

The APMA's sports shoe guidance is longer than most retail advice, and it counts walking miles as well as running. REI says casual wear counts toward the total too, so the pair you also wear to the store wears out faster than you think.

Brands do not agree on cushioning. REI says max-cushion shoes last longer than minimalist ones, while Nike says soft, high-stack foam compresses faster under high mileage. Both can be true: more foam takes longer to bottom out, but softer foam loses its spring sooner.

How Many Months Do Running Shoes Last?

At 40 miles a week, running shoes last about 1.5 to 3 months. At 20 miles a week they last about 3.5 to 6 months, and at 10 miles a week about 7 to 11.5 months. Divide 300 to 500 miles by your weekly mileage to get your own number. Miles matter more than time for most runners, though APMA also suggests replacing shoes every 6 to 8 months.

We worked these out by dividing 300 and 500 miles by weekly mileage, using about 4.3 weeks per month. They line up with what retailers publish: REI says 5 to 8 months at 15 miles a week, and Fleet Feet says 4 to 6 months at 20 miles a week.

What Does the Research Say About Running Shoe Lifespan?

Studies agree that cushioning fades early and keeps fading, but they do not give a clean expiry date. In one classic lab study, shoes lost about a quarter of their shock absorption in the first 50 miles. Runners also adjust their stride as shoes wear, and evidence linking old shoes to injury is limited.

Why do running shoes only last 300 to 500 miles?

Because the midsole foam consists of tiny gas-filled cells that flatten and break a little with every stride. The foam slowly loses its ability to spring back, so it absorbs less impact and feels flat. The rubber outsole also wears thin, especially at the heel and forefoot.

Keep the age of these studies in mind. The 1985 test used shoes and foams from that era, and today's foams are lighter and bouncier. We found no published study that measures how fast modern racing shoes lose their advantage. A widely cited 2018 study of Nike's prototype racing shoe kept every test pair under 50 km of use.

How Do You Know If Your Running Shoes Are Worn Out?

Your running shoes are worn out when the outsole is worn through to the foam or the midsole shows deep creases or feels flat. Other signs are shoes that tilt when you set them on a table, and runs that leave you with new aches. Check them every few weeks, because wear builds slowly and is easy to miss.

The thumb-press test comes from Nike's replacement guide, and the table-tilt test from Runners Need. A hole in the toe box can point to poor fit or long toenails rather than wear, ASICS notes.

Do worn-out running shoes cause injuries?

They may play a part, but the evidence is weaker than most guides suggest. One study of 844 recreational runners found shoe age was a factor in injuries, while a 2015 systematic review called the evidence on shoe factors limited. We found no study showing that worn shoes cause specific problems such as plantar fasciitis. If your shoes feel flat and new pain appears, replace them, and see a podiatrist if the pain stays.

How Often Should You Replace Running Shoes?

Replace running shoes by mileage first and by feel second. For most runners that means every 300 to 500 miles. Track the miles in your running app, and check the shoes against the signs above every few weeks. Replace them at the first clear sign, even if the miles are low.

1. Log the shoes as gear in a running app such as Strava or Garmin Connect, so each run adds to the total.

2. If you do not use an app, write the start date inside the tongue and estimate miles from your weekly routine.

3. Start shopping at about 300 miles, so the new pair is ready before the old one runs out.

4. Break in the new pair on a few short runs while the old pair still has some life.

Are 2-Year-Old Running Shoes Still Good?

If you have run in them regularly for two years, they are almost certainly past 500 miles and due for replacement. If they have barely been worn, they may still be fine, but check them first. Some foams and glues slowly break down with age and moisture, even in the box.

A 2022 study of miners' shoes stored for about 30 years in a German museum found that polyester-based polyurethane soles break down with moisture over the years, eventually cracking and crumbling. There is no published shelf-life figure for running shoes, and runners disagree. On the LetsRun forum, one runner says they avoid shoes built more than three years earlier, while a running store employee says stored pairs that age were fine.

Before running in an old pair, check for cracked or crumbling foam, foam that has gone hard, and soles peeling away from the upper. Check the size label inside the tongue too, where some brands print a production date.

Can running shoes last 10 years?

Not as running shoes. Ten years of regular running is thousands of miles, far beyond any guideline. A pair stored unworn for ten years may still hold together, but the foam and glue are likely to have aged. Treat them as casual shoes and inspect them closely before any run.

Do Expensive Running Shoes Last Longer?

There is no good evidence that expensive running shoes last more miles. In the 1985 Cook study, price made no difference to shock absorption, and a 2008 study found cheaper shoes cushioned as well as or better than expensive ones. What you pay mostly buys lighter weight, softer foam or a racing advantage, not extra miles.

Construction matters more than price. Rubber that covers most of the outsole lasts longer than exposed foam, which wears down quickly. Firmer foams generally compress more slowly than very soft ones. Lightweight racing shoes trade durability for speed, which is why retailers put them at the low end of the mileage range.

Does Rotating Running Shoes Make Them Last Longer?

Rotating two pairs spreads your miles, so each pair lasts more weeks, but we found no study showing it gives you more total miles per pair. What rotation does have evidence for is injury risk: runners who used more than one pair had about a 39% lower injury risk in the Malisoux study. Many runners also find it lets each pair dry out fully.

Some guides say foam needs 24 to 48 hours to recover between runs. We could not find a study that measures this, so treat it as a runner's rule of thumb rather than a fact. adidas cites the same rotation study for injury risk.

What Makes Running Shoes Wear Out Faster?

Running shoes wear out faster with higher weekly mileage, a heavier body, a heavy heel strike or an inward roll, and when they are worn for walking, errands and gym sessions too. Leaving them in a hot car or drying them in a dryer also damages foam and glue. Brands disagree on which surfaces are hardest on shoes.

• Body weight: heavier runners load the midsole more, and most brands say their shoes wear faster. We found no study that gives mileage figures by body weight, so be wary of guides that do.

• Stride: an inward roll wears the inside of the heel and big toe area, and an outward roll wears the outer edge.

• Surface: one ASICS article says pavement and treadmills wear outsoles faster, while another says trails and off-road running do. Rough trails chew rubber, and pavement grinds it steadily.

• Heat: ASICS warns against leaving shoes in a hot car or in direct sun.

• Extra wear: casual wear counts toward the total, as REI points out.

How Long Do Running Shoes Last for Walking?

Running shoes last longer when you only walk in them, because walking puts less load on the foam with each step. The APMA's 600 to 800 mile range counts walking and running together. Many runners move retired running shoes to walking and errands, which is fine as long as they still feel supportive and cause no aches.

We found no medical guidance for or against walking in retired running shoes, so treat it as a practical choice. If you walk a lot, a shoe designed for walking is usually the better buy. The Atoms Model 001 is built for everyday walking, standing and mobility rather than running. Read more in our guide on whether it is OK to wear running shoes for walking.

How Can You Make Running Shoes Last Longer?

Make running shoes last longer by wearing them only for running, untying them before you take them off, cleaning them by hand and air drying them away from heat. Store them somewhere cool and dry, and rotate a second pair if you run most days. None of these add hundreds of miles, but they stop early damage.

1. Wear them only for runs, not errands or gym sessions.

2. Untie the laces fully before taking the shoes off, so you do not crush the heel counter.

3. Knock off mud and grit after trail runs, and clean the uppers by hand. Our guide on cleaning mesh shoes covers the steps.

4. Air dry wet shoes stuffed with paper towels. Never use the dryer or a heater.

5. Keep them out of hot cars and direct sun.

6. Pull out wet insoles after a run so the inside dries fully. If odor builds up, see how to deodorize shoes.

Frequently Asked Questions

How many km do running shoes last?

About 480 to 800 km, which is the metric version of the usual 300 to 500 mile guideline.

How many miles do carbon-plated racing shoes last?

We found no published study that measures it. Retailers such as Runners Need put lightweight racing shoes at about 250 to 300 miles, and many runners save them for races and key workouts to make them last.

Do running shoes expire if you do not wear them?

Not on a set date, but some foams and glues slowly age with heat and moisture. Store unworn shoes somewhere cool and dry, and check old pairs for cracking, hardening or peeling before running in them.

Should you replace both shoes at the same time?

Yes. Even if one shoe looks more worn, the pair has done the same miles, and running in one new and one old shoe feels uneven.

Can you make running shoes last longer by replacing the insoles?

New insoles can freshen the feel and help with odor, but they do not restore the midsole, which does most of the cushioning. Once the midsole is flat, the shoes are due.

Do trail running shoes last longer?

Not necessarily. Trail shoes often have tougher, fuller rubber outsoles, but rocky ground wears tread and uppers quickly. Runners Need gives them the same 300 to 500 mile range as road shoes.

How long do running shoes last if you only walk in them?

Longer than if you run in them, because walking loads the foam less. Replace them when the soles wear smooth, the cushioning feels flat or your feet start to ache.

Sources

This guide draws on guidance from the APMA, Nike, REI, Fleet Feet, Runners Need, ASICS and adidas. It also draws on studies in the American Journal of Sports Medicine, the Journal of Biomechanics, the British Journal of Sports Medicine, the Scandinavian Journal of Medicine and Science in Sports, Sports Medicine, PLOS ONE and npj Materials Degradation. We link each source where we use it. Forum views come from the LetsRun running forum.

Hassaan Sabih writes for the Atoms editorial team about footwear, fit and shoe care. Atoms makes everyday shoes for walking and standing rather than running shoes, so this guide relies on published research and running brands' own guidance.

Updated October 4, 2026: rewrote the guide around published research, added a months-by-mileage table and the APMA guideline, and removed figures we could not source, including weight-based mileage bands, price-based lifespans and rotation lifespan percentages.

Looking for a pair for walking and everyday wear instead? See Atoms shoes.