How to Walk a Half Marathon (13.1 Miles on Foot)

A half marathon is 13.1 miles. At a brisk walking pace, that takes roughly three and a half to four hours. At a comfortable pace, four to four and a half hours. Those are serious numbers, both the distance and the time. But here’s what makes walking a half marathon different from running one: you don’t need to be an athlete. You need to be prepared.

Walking 13.1 miles is a test of endurance, planning, and patience rather than speed or fitness. With the right training, most healthy adults can do it. This guide covers the full picture: how to train, what to expect, and how to cross the finish line feeling accomplished rather than destroyed.

Can You Do This?

If you can currently walk three miles comfortably, you can train for a half marathon. You’ll need twelve to sixteen weeks depending on your starting fitness and how conservatively you want to build. If three miles is still a stretch, start with the 1 mile to 5 miles progression guide and come back when five miles feels routine.

A quick health note: walking 13.1 miles puts sustained demand on your feet, knees, hips, and cardiovascular system. If you have any existing joint conditions, heart concerns, or chronic health issues, talk to your doctor before starting this training. Not because walking is dangerous, but because four hours of continuous movement is a different category from your usual daily walk.

The 16-Week Training Plan

This plan assumes you’re starting with a comfortable three to four mile base. If you’re starting from five or more, you can begin at week 5.

The structure mirrors serious half marathon training: three to four moderate walks during the week, one long walk on the weekend, and one or two complete rest days.

Weeks 1 through 4 (Foundation). Weekday walks of two to three miles each, three to four days per week. Weekend long walk builds from four miles to five to six miles. Focus on comfortable pace.

Weeks 5 through 8 (Building). Weekday walks of three miles. Weekend long walk builds from six miles to eight miles. Week 7 is a recovery week where you drop the long walk back to five miles. Your body needs these recovery weeks; don’t skip them.

Weeks 9 through 12 (Peak Building). Weekday walks of three to four miles. Weekend long walk builds from eight miles to ten miles, with a recovery week at seven miles in week 11. Ten miles is the longest training walk most plans require. If you can walk ten miles, you can walk 13.1 on event day.

Weeks 13 and 14 (Final Push). Weekend long walk hits 11 miles in week 13, then drops to eight miles in week 14. Weekday walks stay at three miles. These weeks are about confidence, not building more fitness.

Weeks 15 and 16 (Taper). This is where you rest. Weekday walks drop to two miles. Weekend walk in week 15 is five to six miles. Week 16, walk three miles a few days before the event and then rest. The taper feels wrong; you’ll feel like you should be doing more. Trust the plan. Your body is consolidating twelve weeks of work.

Pacing for 13 Miles

The single biggest mistake first-time half marathon walkers make is starting too fast. You feel fresh, the crowd is energising, and your pace creeps up. Then at mile eight, you pay for it.

The walking time calculator can help you plan your target pace. For most walkers, finishing between 3.5 and 4.5 hours is realistic. That’s roughly a 16 to 20 minute per mile pace.

Start your event at the pace you’d use for a comfortable three-mile walk. Not brisk, not pushing, just comfortable. Maintain that pace through mile six. If you feel strong at the halfway point, you can pick up the pace slightly. If you feel like you’re working at the halfway point, slow down. The second half should feel like a continuation, not a battle.

Walk the aid stations. Seriously. Trying to drink water while walking at pace leads to water down your shirt and a coughing fit. Slow to an easy stroll at every water station, drink properly, and then resume your pace. The 30 seconds you lose is irrelevant; the hydration you gain is critical.

Nutrition and Hydration

For any walk over two hours, you need to eat and drink during the walk, not just before and after.

Before the event: eat a familiar meal two to three hours before the start. Oatmeal, toast with peanut butter, a banana. Nothing new, nothing rich, nothing spicy. Your stomach needs to be settled, not full.

During the walk: drink water at every aid station. If the event offers electrolyte drinks, alternate between water and electrolytes. For food, carry small snacks you’ve tested during training. Dried fruit, energy chews, small pretzels, or fig bars all work well. Aim to eat something every 45 to 60 minutes after the first hour. The calorie calculator can give you a sense of how many calories you’ll burn over the full distance, but the practical rule is simpler: eat before you’re hungry and drink before you’re thirsty.

After the event: eat a real meal within an hour. Your body has burned somewhere between 800 and 1,400 calories (depending on weight and pace) and needs replenishment.

Gear for 13 Miles

Your shoes are everything. They must be broken in, comfortable, and supportive. Do not wear new shoes on event day. Your training shoes are your event shoes.

Socks matter more than you think at this distance. Moisture-wicking, seamless socks prevent the blisters that cotton socks guarantee over 13 miles. Try several pairs during training and pick the ones that cause zero friction.

Dress for mile three, not for the start line. You’ll warm up. Layers that can be removed and tied around your waist are ideal. Many events have gear drop bags or charity clothing bins at the start line where you can shed an outer layer.

Body Glide or petroleum jelly on any skin that rubs: inner thighs, under arms, anywhere your bra or waistband sits. Chafing at mile three becomes agony at mile ten. Prevention takes thirty seconds; treatment takes days.

Carry your own water bottle even if the event has aid stations. A handheld bottle or small waist belt lets you drink between stations, which keeps you properly hydrated over four hours.

What 13.1 Miles Feels Like

Miles one through three feel like any other walk. You’re fresh, the atmosphere is fun, and the distance feels abstract.

Miles four through six are where you settle into your rhythm. The novelty fades and the walk becomes the walk. This is your cruising phase.

Miles seven through nine are the middle. Not close enough to the start to feel fresh, not close enough to the finish to feel pulled forward. This is the part you trained for. Your weekend long walks at eight to ten miles prepared you for exactly this stretch. Stay steady.

Miles ten through twelve are where character shows up. Your feet are tired. Your legs are heavy. You might get a hot spot that threatens to become a blister. This is where pacing pays off; if you started conservatively, you have energy left. If you started too fast, this is where you know it.

Mile thirteen is a victory lap. You can see the finish. The crowd noise picks up. Your legs find something extra they didn’t have at mile eleven. Cross the finish line knowing you’ve done something that most people never attempt.

The Week After

Walk very little for two to three days after the event. Your body needs to recover. Light walks of 10 to 15 minutes are fine; anything longer delays recovery.

Expect soreness in your feet, calves, and possibly hips. This peaks around 24 to 48 hours after the event and fades within a week. Gentle stretching helps. Hot baths help more.

By the end of the week, you’ll feel normal again. And you’ll have a finish time, a medal (most events give them to all finishers), and the knowledge that you walked 13.1 miles under your own power.

What you do next is up to you. Some people walk one half marathon and call it done. Others find that the training gave them a fitness level they don’t want to lose, and they keep walking long distances every weekend. A few catch the bug and start eyeing a full marathon.

Whatever you choose, you’ve proven something to yourself. Thirteen point one miles is not a small thing. It’s not supposed to be. That’s what makes it worth doing.