What this tool does
Enter steps, height, weight, and pace. The calculator converts steps to distance via a stride estimate, then applies ACSM walking energy math. You get gross and net kcal plus calories per 1,000 steps.
How it works
Stride length ≈ height (m) × 0.415. Distance = steps × stride. Walking time follows your pace setting. ACSM VO₂ turns speed into oxygen cost, then kcal (5 kcal per liter O₂).
Formula and methodology
km = steps × (height_m × 0.415) / 1000. Hours = km / walking speed. ACSM walking VO₂ (ml/kg/min) = 0.1·S + 1.8·S·G + 3.5, then kcal = VO₂/1000 × kg × min × 5.
How to interpret the result
A 70 kg person might burn ~35–50 kcal per 1,000 moderate steps. 7,000 steps is often 250–350 kcal; 10,000 often 350–500 — not the mythical 1,000 kcal. Heavier bodies cost more per step.
Example
175 cm, 75 kg, 7,000 moderate steps: often ~250–320 kcal gross. The same person at 10,000 steps: often ~350–450 kcal. Per 1,000 steps: roughly 35–45 kcal at that size.
Common mistakes
- Using a generic “40 kcal per 1,000 steps” rule for every body size.
- Eating back the full burn when TDEE already counted a walking day.
- Trusting a wrist count that logged stirring a pot as a hike.
When this estimate may be off
- The tracker was on a shopping cart or stroller handle.
- You ran part of the steps — use the running calculator for that block.
- The walk had steep hills — use the walking calculator with incline.
