How Long Does It Take to Walk a Half Marathon?

Quick Answer
Walking a half marathon (13.1 miles) takes approximately 3 hr 45 min to 4 hr 22 min for most adults.
At a moderate pace (3.0 mph): about 4 hr 22 min  ·  At a brisk pace (3.5 mph): about 3 hr 45 min  ·  At a power walk (4.0 mph): about 3 hr 17 min

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4 hr 22 min
estimated walking time
—
calories burned
26,200
approx. steps
105
city blocks
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Walk Time by Pace: a Half Marathon

How walking speed changes the time it takes to cover a half marathon. The highlighted row is the average walking pace for most adults.

PaceSpeedTime to Walk a Half Marathon
Leisurely2.0 mph6 hr 33 min
Easy2.5 mph5 hr 14 min
Moderate3.0 mph4 hr 22 min
Brisk Walk3.5 mph3 hr 45 min
Power Walk4.0 mph3 hr 16 min
Race Walk4.5 mph2 hr 55 min

a Half Marathon Is Equivalent To...

👣
~26,000 steps
at average stride length
📏
13.1 miles
(21.1 km)
🏙️
~105 blocks
city blocks (approx)
🏟️
52 laps
around a standard track
⏰
~4 hr 22 min
at a comfortable pace

Walking a Half Marathon: A Serious Undertaking Worth Taking Seriously

A half marathon is 13.1 miles. Walking it takes the better part of a morning or afternoon. This is not a casual walk: it is a planned event that requires preparation, proper footwear tested over long distances, nutrition on the day, and a pace strategy that accounts for fatigue in the final miles.

Most half marathon events welcome walkers, and many have cutoff times of 3 hours 30 minutes to 4 hours, which accommodates a brisk to moderate walking pace. Check the specific event's cutoff before registering.

The calorie burn for a half marathon walk is substantial: around 1,127 calories for a 155 lb adult at moderate pace. The cardiovascular demand of four-plus hours of sustained walking builds the kind of aerobic base that takes months to develop through shorter sessions. Completing a half marathon on foot, whether in a race or as a training walk, is a genuine athletic achievement.

Calories Burned Walking a Half Marathon

Estimates based on moderate pace (3.0 mph) on flat terrain. Use the calculator above for terrain and fitness adjustments.

Body WeightCalories Burned Walking a Half Marathon (moderate pace)
130 lbs901
155 lbs1074
180 lbs1248
205 lbs1421
230 lbs1594
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Frequently Asked Questions

Walking a half marathon (13.1 miles / 21.1 km) takes approximately 3 hours 45 minutes at a brisk pace (3.5 mph) to 4 hours 22 minutes at a moderate pace (3.0 mph). At a power walk pace of 4.0 mph, about 3 hours 17 minutes. Most organised half marathons have walker cutoff times between 3 hours 30 minutes and 4 hours 30 minutes.
Walking a half marathon burns approximately 946 to 1,683 calories for most adults at a moderate pace. A 130 lb person burns around 946 calories. A 155 lb person around 1,127 calories. A 180 lb person around 1,310 calories. A 230 lb person around 1,676 calories. This is one of the most significant single-session calorie burns achievable through walking.
A half marathon walk covers approximately 26,200 steps at average adult stride length. This is more than 2.5 times the recommended daily step target, all in one session.
A beginner can walk a half marathon with adequate preparation, which typically takes 8 to 12 weeks of building up walking distance. The key is reaching a long walk of 10 to 11 miles in training before the event. Footwear is critical: shoes that have not been tested over long distances will cause problems before mile 10. Most people who can walk 5 miles comfortably are 6 to 8 weeks of consistent training away from a half marathon.
Most half marathon events welcome walkers, and many actively encourage them. Cutoff times vary by event: most are between 3 hours 30 minutes and 4 hours 30 minutes, which accommodates a brisk walking pace. Some events have no cutoff. Always check the specific event's rules before registering.
Prepare for a half marathon walk by building your longest weekly walk to 10 to 11 miles over 8 to 12 weeks. Increase distance gradually, adding no more than 10 percent per week. Wear the shoes you will use on race day. Practice fuelling with snacks or gels during walks over 2 hours. Rest properly in the week before the event. Arrive early, start at a conservative pace, and adjust in the second half if you feel strong.

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