How many steps in 15 km?
The answer — for an average adult — and how it changes with your height.
Quick answer
19,737 steps
15 km · about 3 h at a normal pace · 735 calories for a 70 kg walker
Walking 15 km takes about 19,737 steps for an average adult, using a typical 76 cm (2.5 ft) stride. At a normal walking pace of 5 km/h that takes about 3 h, and burns roughly 735 calories for a 70 kg (155 lb) person. Your exact step count depends on your height — shorter walkers take more steps for the same distance.
Steps required depend on your height
Shorter walkers take more steps to cover the same distance.
| Your height | Stride | Steps |
|---|---|---|
| 4'10" (147 cm) — petite | 60.7 cm | 24,707 |
| 5'4" (163 cm) — avg woman | 67.3 cm | 22,282 |
| 5'9" (175 cm) — avg adult | 72.6 cm | 20,654 |
| 6'0" (183 cm) — avg man | 75.9 cm | 19,751 |
| 6'4" (193 cm) — tall | 80.1 cm | 18,728 |
Calories burned by weight and pace
Calories scale linearly with body weight. Faster paces burn more — but only modestly more for walking.
| Your weight | Slow (2 mph) | Normal (3.1 mph) | Brisk (4 mph) |
|---|---|---|---|
| 120 lb (54 kg) | 633 cal | 567 cal | 570 cal |
| 150 lb (68 kg) | 797 cal | 714 cal | 717 cal |
| 180 lb (82 kg) | 961 cal | 861 cal | 865 cal |
| 210 lb (95 kg) | 1,113 cal | 998 cal | 1,002 cal |
| 250 lb (113 kg) | 1,324 cal | 1,187 cal | 1,192 cal |
How long will it take?
Time depends on your walking pace. Most adults walk at a normal pace of about 3 mph.
| Pace | Speed | Time |
|---|---|---|
| Slow (2 mph) | 2 mph | 4 h 41 min |
| Normal (3.1 mph) | 3.1 mph | 3 h |
| Brisk (4 mph) | 4 mph | 2 h 21 min |
Track your real numbers with Steps
These conversions use averages. The Steps app tracks your actual step length, calories, and walking time — synced from your iPhone and Apple Watch.
Related conversions
Frequently asked questions
How many steps is 15 km?+
15 km is about 19,737 steps for an average adult with a 76 cm stride length. Shorter walkers take more steps to cover the same distance — see the height table on this page for your specific number.
How long does it take to walk 15 km?+
At a normal walking pace of 5 km/h, 15 km takes about 3 h. At a brisk 6.4 km/h pace it takes about 2 h 21 min. At a slow 3.2 km/h pace it takes about 4 h 41 min.
How many calories does walking 15 km burn?+
Walking 15 km burns roughly 735 calories for a 70 kg (155 lb) person at a normal pace. See the calorie table on this page for your weight.
How is the km-to-steps conversion calculated?+
We multiply the distance by 100,000 (cm/km) and divide by an average stride length of 76 cm. So 15 km = 1500000 cm ÷ 76 cm ≈ 19,737 steps. Your actual stride is roughly 0.41 × your height.