How 20 km Becomes 27,027 Steps
Divide the distance by the average adult stride to get steps: 20,000 m ÷ 0.74 m ≈ 27,027 steps. In miles that's 12.43.
Height matters: at 155 cm you'd need about 31,167 steps, at 190 cm about 25,426 steps for the same 20 km. A taller walker takes fewer steps for the same distance.
Time to cover 20 km: 4h moderate, 3h 05min brisk, 5h slow.
How long does 20 km take on foot?
Moderate 5 km/h: 4h. Brisk 6.5 km/h: 3h 05min. Slow 4 km/h: 5h. Race-walk 8 km/h: 2h 30min.
Calories burned walking 20 km
A 70 kg adult burns ~1029 kcal at moderate pace across 20 km. The 55–100 kg range spans 808–1470 kcal. Brisk 6.5 km/h raises a 70 kg walker to ~1131 kcal.
Steps by height
Because stride scales with leg length, step counts for the same 20 km vary widely. The table below shows exact step counts by height using the standard height×0.414 stride estimate.
Is walking 20 km worthwhile?
Approaches long-hike or event-day mileage — recover with hydration and light stretching. Split into two shorter walks if you're short on time — the calorie total is the same.

Steps in 20 km by Height
| Height | Avg stride | Steps |
|---|---|---|
| 155 cm (5'1") | 0.64 m | 31,167 steps |
| 165 cm (5'5") | 0.68 m | 29,278 steps |
| 170 cm (5'7") | 0.70 m | 28,417 steps |
| 175 cm (5'9") | 0.72 m | 27,605 steps |
| 180 cm (5'11") | 0.75 m | 26,838 steps |
| 185 cm (6'1") | 0.77 m | 26,113 steps |
| 190 cm (6'3") | 0.79 m | 25,426 steps |
Stride ≈ height × 0.414 (m).
How pace changes your 27,027-step walk
Leisurely
300 min
at 4 km/h
Moderate
240 min
at 5 km/h
Brisk
185 min
at 6.5 km/h
Calorie estimates use a 70 kg (154 lb) reference. Enter your own weight above for exact numbers.
27,027 steps vs the classic 10,000-step goal
That's 100% of a full 10,000-step day — do this 1× to hit the daily target.
100%
of 10k
Weekly
189,189
steps if daily
Monthly
810,810
steps if daily
Yearly km
7,300
if daily
Key takeaway
20 km ≈ 27,027 steps (12.43 miles), takes about 4h at moderate pace, and burns ~1029 kcal for a 70 kg adult.
Want your exact number?
Real-Life Scenarios
🟢 Everyday — 20 km walked once through
Priya (65 kg) walks 20 km from the station home. It takes about 4h and burns ~956 kcal. Step count on her watch: ~27,027.
🟡 Weekend loop — 20 km with variable terrain
Mark (80 kg) takes 20 km along a mixed path. Elevation and softer ground push burn from ~1176 to ~1470 kcal.
🔴 Fitness plan — 20 km slotted into a weekly schedule
Julie (70 kg) walks 20 km 5×/week. Weekly kcal: ~5145. Weekly distance: 100.0 km.

In summary: 20 km ≈ 27,027 steps (12.43 miles), takes about 4h at moderate pace, and burns ~1029 kcal for a 70 kg adult.
