18,000 steps to kilometers
How far do you walk when you hit 18,000 steps?
Quick answer
13.7 km
8.50 miles · about 2 h 44 min at a normal pace · 670 calories for a 70 kg walker
Walking 18,000 steps covers about 13.7 km (8.50 miles) 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 2 h 44 min, and burns roughly 670 calories for a 70 kg (155 lb) person. Your exact distance depends on your height — taller people cover more ground per step. See the table below.
Distance depends on your height
Your stride length is roughly 0.41 × your height — so a shorter walker covers less ground per step.
| Your height | Stride | Miles | Kilometers |
|---|---|---|---|
| 4'10" (147 cm) — petite | 60.7 cm | 6.79 mi | 10.9 km |
| 5'4" (163 cm) — avg woman | 67.3 cm | 7.53 mi | 12.1 km |
| 5'9" (175 cm) — avg adult | 72.6 cm | 8.12 mi | 13.1 km |
| 6'0" (183 cm) — avg man | 75.9 cm | 8.49 mi | 13.7 km |
| 6'4" (193 cm) — tall | 80.1 cm | 8.96 mi | 14.4 km |
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) | 577 cal | 517 cal | 519 cal |
| 150 lb (68 kg) | 727 cal | 651 cal | 654 cal |
| 180 lb (82 kg) | 876 cal | 785 cal | 789 cal |
| 210 lb (95 kg) | 1,015 cal | 910 cal | 914 cal |
| 250 lb (113 kg) | 1,208 cal | 1,082 cal | 1,087 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 16 min |
| Normal (3.1 mph) | 3.1 mph | 2 h 44 min |
| Brisk (4 mph) | 4 mph | 2 h 8 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.
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Frequently asked questions
How many km is 18,000 steps?+
18,000 steps is about 13.7 km (8.50 miles) for an average adult with a 76 cm stride length. Shorter walkers cover slightly less distance, taller walkers more — see the height table on this page for your specific number.
How long does it take to walk 18,000 steps?+
At a normal walking pace of 5 km/h, 18,000 steps takes about 2 h 44 min. At a brisk 6.4 km/h pace it takes about 2 h 8 min. At a slower 3.2 km/h stroll it takes about 4 h 16 min.
How many calories does 18,000 steps burn?+
18,000 steps burns roughly 670 calories for a 70 kg (155 lb) person at a normal walking pace. Lighter people burn fewer calories per step; heavier people burn more. See the calorie table on this page for your weight.
How is the steps-to-km conversion calculated?+
We use an average adult stride length of 76 cm (2.5 ft). Steps × stride length (cm) ÷ 100,000 = distance in km. So 18,000 steps × 76 cm ÷ 100,000 ≈ 13.7 km. Your actual stride is roughly 0.41 × your height.