How Long to Train for a 10K: 8 Weeks From a 5K, About 17 From Scratch

The short answer

If you can already run a 5K, or run about 2.5 miles without stopping, plan on 8 weeks to train for a 10K. That's the length of Hal Higdon's Novice 10K, the plan we use for this level. If you're starting from nothing, add NHS Couch to 5K first, which the NHS says takes "9 weeks or longer," for a total of about 17 weeks. Both numbers assume three runs a week and no big interruptions.

The 10K is a friendly distance to train for. As Higdon's 10K overview puts it, "you don't need to spend 18 weeks training specifically for them, and recovery time is measured in days, not weeks."

How long, by starting point

Week counts come from the published plans linked in this guide; the totals are our arithmetic. The real test for the 8-week plan is its first workout. Higdon's Novice 10K opens with a 2.5-mile run on Tuesday of week 1, and he writes that if that "seems too difficult, you might want to pause before taking your first steps." The plan's stated prerequisites are modest: "no major health problems, and perhaps have done at least some jogging or walking."

Are you ready for the 8-week plan?

Three quick checks, all taken from the published plans:

• Can you run 30 minutes without stopping? That's where NHS Couch to 5K finishes, and it's a good sign you can handle the Novice 10K's opening week.
• Can you run 2.5 miles? That's the Novice 10K's first Tuesday run. If it feels out of reach, Higdon's own advice is to pause before starting.
• Can you run three days a week? Every week of the plan has three runs, plus two cross-training days that can be walking, cycling or swimming.

Three yeses and you can start the 8-week plan now. If any is a no, the table above shows the shorter plan to do first.

From a 5K: the 8-week plan

Higdon's Novice 10K asks for three runs a week: short runs on Tuesday and Thursday and a longer run on Sunday, with cross-training on Wednesday and Saturday and rest on Monday and Friday. Here is the running, week by week, from the published schedule:

So a "10K training plan" at this level is about 7.5 to 10.5 miles of running a week before race week, with the Sunday run growing by half a mile most weeks. The longest run before the race is 5.5 miles, not 6.2: the race itself is the first time you cover the full distance, which is normal for a novice plan.

What a training week looks like

Here's week 4 of the Novice 10K, straight from the published schedule:

The rest days sit where they do for a reason. Higdon writes, "I suggest you rest on Fridays before your weekend workouts and on Mondays after those workouts." If your week doesn't fit that shape, shifting the whole pattern by a day or two keeps the logic: a rest day before and after the long run, and no two runs back to back.

From scratch: Couch to 5K first

If you're not running yet, the Novice 10K's 2.5-mile first run is a big ask. The NHS Couch to 5K plan closes that gap. It has you running three times a week with rest days in between, starting in week 1 with 1-minute runs followed by 90 seconds of walking, and it builds to running 30 minutes without stopping. The NHS says it can be completed "in 9 weeks or longer, depending on what works best for you."

Finish that, and you're ready for week 1 of the Novice 10K. Nine weeks plus eight is 17, which is why "about 17 weeks" is our answer for a runner starting from the couch. If a week of Couch to 5K needs repeating, the total stretches, and that's fine: the NHS builds that flexibility in.

There's a middle route for people who already walk or jog a bit. Higdon's Novice 5K is also 8 weeks, and assumes you're "in reasonably good shape, and have done at least some jogging or walking." Its runs build from 1.5 miles in week 1 to 3 miles by week 7, which lines up neatly with the Novice 10K's starting point.

If you're at this stage, our Couch-to-5K hub covers the shoes and kit for the first nine weeks.

Already running? Training for a faster 10K

If you've done a few races and want to run the 10K faster rather than just finish it, Higdon's Intermediate 10K is also 8 weeks. It's written for runners "running five to six times a week," averaging "15-25 miles weekly training," with "a half dozen or more races at distances between the 5K and the Half-Marathon." It adds 400-meter intervals at 5K race pace and tempo runs, and its long run reaches 8 miles. Higdon's 10K program page describes it as the plan for "runners who want to improve their performances."

What you need for 10K training

Less than you might think. At 7.5 to 10.5 miles a week, one good daily trainer handles every run in the plan, and a second pair is optional. What changes from Couch to 5K is that the plan is written in miles instead of minutes, so you need a way to measure distance: a phone app works, and a basic GPS watch makes it easier.

What to look for:

• A neutral daily trainer that fits. No plate needed. Comfort and fit matter more than weight at conversational pace. Wide or narrow feet? Check the width range before the model.
• Enough cushion for your longest run. The Sunday run tops out at 5.5 miles, so a moderate, traditional trainer is plenty; you don't need a max-cushion shoe yet.
• A watch that shows distance and pace and, ideally, can follow a plan, so the Tuesday, Thursday and Sunday runs are one button away.

For more options, our best running shoes for 5K and 10K ranks seven trainers for this plan, and the best running watch for beginners covers watches from Couch to 5K through a first 10K.

If the plan feels too hard

Higdon's plans are forgiving by design. Walk breaks are allowed on the long runs, pace doesn't matter, and rest days are part of the plan: "You can't train efficiently if fatigued. Take rest days seriously." If the first week is a struggle, the fix is to step back, not push through: repeat a week, or go back to the Novice 5K or Couch to 5K until 2.5 miles feels manageable. An extra week or two costs you nothing on race day.

When race week arrives, our first 10K race-day checklist covers the night before, race morning and pacing.

After the 10K: how long to a half?

If the 10K goes well, the half marathon is a natural next goal. Higdon's Novice 1 Half Marathon is 12 weeks, and its stated starting point is "the ability to run 3 miles, three to four times a week," which you'll have after the Novice 10K. From the couch, that's about 29 weeks to a half by our arithmetic: 9 of Couch to 5K, 8 of the Novice 10K and 12 of the Novice 1 Half, with room for a rest week or two in between.

Our half marathon training mileage guide shows what the next plan asks, week by week.