How long does it take to walk a half marathon?
About 4 h 22 min at an average 3 mph walking pace, or 3 h 45 min if you walk briskly at 3.5 mph. A half marathon is 13.1 miles. Walkers typically finish in 3.5–4.5 hours, so check the event cutoff before you enter.
Your time for a half marathon
Distance: 13.11 miles · 21.10 km · roughly 26,200–31,500 steps.
Time to walk a half marathon at common speeds
| Speed | Pace / mile | Time | Typical of |
|---|---|---|---|
| 2.0 mph · 3.2 km/h | 30:00 | 6 h 33 min | Stroll |
| 2.5 mph · 4.0 km/h | 24:00 | 5 h 15 min | Average |
| 3.0 mph · 4.8 km/h | 20:00 | 4 h 22 min | Brisk |
| 3.5 mph · 5.6 km/h | 17:09 | 3 h 45 min | Brisk |
| 4.0 mph · 6.4 km/h | 15:00 | 3 h 17 min | Power walk |
| 4.5 mph · 7.2 km/h | 13:20 | 2 h 55 min | Power walk |
| 5.0 mph · 8.0 km/h | 12:00 | 2 h 37 min | Race walk |
What changes the answer
Terrain. Hiking guides use Naismith's rule: allow an extra hour for every 600 m (about 2,000 ft) of climbing on top of the flat-ground time. On rough trails, expect 20–30% slower than on pavement.
Traffic lights and crowds. City walks often average 10–15% slower than a treadmill at the same effort because of crossings.
Fitness and age. Comfortable walking speed stays around 3 mph through middle age and drifts down after 60 — see average walking speed by age.
Want to know your own pace first? Time a mile and plug it into the walking pace calculator.
Questions walkers ask
How long does it take to walk a half marathon?
At an average pace of 3 mph, walking a half marathon (13.11 miles) takes about 4 h 22 min. A brisk 3.5 mph cuts it to 3 h 45 min; a relaxed 2.5 mph stretches it to 5 h 15 min.
How long is a half marathon at a fast walk?
A fast power walk of 4 mph covers a half marathon in about 3 h 17 min, before any stops.
How many steps is a half marathon?
Most adults take 2,000–2,400 steps per mile, so a half marathon is roughly 26,200–31,500 steps. Taller walkers and faster paces sit at the low end.