Most people take about 3 hours 20 minutes to 5 hours to walk 20 km, not counting long breaks. At an average comfortable pace of 5 km/h, a 20 km walk takes about 4 hours. Faster walkers can finish closer to 3 hours 20 minutes, while an easy pace, hills or frequent stops can push it toward 5 hours or more.
A 20 km walk is a substantial endurance walk, not just a casual stroll. Most people should treat it like a planned outing: choose shoes you trust, carry water, and build up gradually if your usual walk is much shorter.
20 km walking time by pace
The simplest way to estimate 20 km walking time is to divide distance by walking speed. Use this table as a practical benchmark for flat ground.
| Walking speed | Type of pace | Time to walk 20 km |
|---|---|---|
| 3 km/h | Very easy / recovery pace | 6 hours 40 minutes |
| 4 km/h | Relaxed walk | 5 hours |
| 4.5 km/h | Steady easy walk | 4 hours 27 minutes |
| 5 km/h | Average comfortable pace | 4 hours |
| 5.5 km/h | Brisk walk | 3 hours 38 minutes |
| 6 km/h | Fast fitness walk | 3 hours 20 minutes |
The quick formula is:
Walking time = distance ÷ speed
20 km ÷ 5 km/h = 4.0 hours = 240 minutesIs 20 km a long walk?
A 20 km walk is best understood as a long-distance walk. It is about 12.43 miles, so the effort depends heavily on your current walking routine.
Compared with a 5K, 20 km is four times longer. It is also a little under half-marathon distance, so pacing, hydration and footwear matter much more than they do on a short walk.
If you are new to walking, returning from injury or dealing with foot, knee, hip or back pain, build up gradually. Walking is accessible, but distance still creates load on the body.
How many steps is 20 km?
A 20 km walk is usually around 25,000 to 30,770 steps. The exact number depends on your stride length.
| Average stride length | Approximate steps for 20 km |
|---|---|
| 0.65 m | About 30,770 steps |
| 0.70 m | About 28,570 steps |
| 0.75 m | About 26,670 steps |
| 0.80 m | About 25,000 steps |
Shorter strides mean more steps for the same distance. A phone or watch pedometer will usually be more accurate than a generic estimate.
How many calories does walking 20 km burn?
For most adults, walking 20 km burns roughly 540 to 1170 calories, depending on body weight, pace, terrain and walking efficiency.
| Body weight | Easy/moderate pace | Brisk pace |
|---|---|---|
| 60 kg / 132 lb | About 540 kcal | About 780 kcal |
| 70 kg / 154 lb | About 630 kcal | About 910 kcal |
| 80 kg / 176 lb | About 720 kcal | About 1040 kcal |
| 90 kg / 198 lb | About 810 kcal | About 1170 kcal |
These numbers are estimates. Hills, wind, trails, heat and carrying a backpack can increase effort. If calorie tracking is your goal, compare this distance with our guide to how many calories are burned walking for 1 hour.
What pace should you choose?
For most people, the best walking pace is one you can repeat without pain. A useful target is a pace where breathing is elevated but controlled.
- Easy or recovery walk: choose 3–4 km/h and keep the effort comfortable.
- General fitness walk: choose around 4.5–5 km/h on flat ground.
- Brisk cardio walk: choose 5.5–6 km/h if you can maintain form without overstriding.
- Hilly route: manage effort rather than chasing average speed.
Tips to make a 20 km walk easier
- Start slower than your target pace. Let your legs and breathing settle during the first few minutes.
- Use comfortable shoes. Small hotspots become more annoying as distance increases.
- Pick predictable terrain. Flat loops make pace estimates more reliable.
- Keep your stride natural. Overstriding to go faster can irritate shins, knees or hips.
- Build distance gradually. Increase your usual walk step by step instead of jumping straight to longer sessions.
- Stop if symptoms are unusual. Chest pain, dizziness, sharp joint pain or unusual breathlessness are not normal training signals.
20 km compared with other walking distances
If you are building a walking routine, compare nearby distances rather than treating each route in isolation.
- How long it takes to walk 1 km — useful for estimating your own pace
- How long it takes to walk 3 km — a shorter everyday comparison
- How long it takes to walk 4 km — a moderate walking-distance comparison
- How many miles a 5K is and how long it takes — useful if you compare walking distances with race distances
- How long it takes to walk 6 km — the main nearby walking guide
- How many calories you burn walking 1 hour — useful for time-based calorie estimates
- Average human running speed — useful if you compare walking pace with running benchmarks
FAQ
How long does it take to walk 20 km on average?
At an average 5 km/h pace, it takes about 4 hours to walk 20 km. A realistic range for many adults is 3 hours 20 minutes to 5 hours, depending on pace and terrain.
How many miles is 20 km?
20 km is about 12.43 miles.
How many steps are in 20 km?
Most people take about 25,000 to 30,770 steps to walk 20 km, depending on stride length.
Can you walk 20 km every day?
Some people can, but it depends on current fitness, recovery, footwear and injury history. Build up gradually and keep easy days easy.
Is walking 20 km good exercise?
Yes, walking 20 km can support general activity, aerobic fitness and endurance when it is done consistently and without pain.
Bottom line
A 20 km walk usually takes around 4 hours at a normal 5 km/h pace. Expect roughly 25,000 to 30,770 steps, and remember that hills, stops, heat and fitness level can change your real time.
Safety note: this article is informational and does not replace medical advice. If you have chest pain, dizziness, unusual shortness of breath, recent injury or sharp joint pain, get medical guidance before increasing walking distance.
