How it works
distance = steps × (height × stride factor)
Distance equals steps times stride, and stride is approximated from height: 0.414 × height for walking, 0.65 × height for running, since running strides reach farther. Walk the default inputs through it: 1.70 m of height gives a 0.70 m walking stride, so 10,000 steps cover about 7.0 km — 4.4 miles — while switching the activity to running stretches the same count past 11 km. Calories come from weight and distance at roughly 0.53 kcal per kilogram per kilometer walking and nearly double that running, which lands around 260 kcal for a 70 kg walker over those steps. Both stride factors are population averages; measuring your own stride over a known distance always beats the formula.
Sources
- Stride length from height Stride length is commonly estimated as a fraction of height — about 0.414 × height for walking and roughly 0.65 × height for running.
- Energy cost of walking and running Distance-based estimates of around 0.5 kcal·kg⁻¹·km⁻¹ (walking) and ~1.0 kcal·kg⁻¹·km⁻¹ (running) are widely used approximations of net energy cost.
- Steps-per-mile context Average adults take roughly 2,000–2,500 steps per mile walking and fewer running, depending on height and pace.
FAQ
How far is 10,000 steps really?
Walking, roughly 4 to 5 miles for most adults — the default height here returns 4.4. Height is the swing factor: at 1.55 m the same steps shrink toward 4 miles, while a 1.90 m walker approaches 5.
What inputs matter most?
The activity toggle, surprisingly. The running stride factor (0.65 × height) is more than half again the walking one (0.414), so labeling a run as a walk undercounts your distance by a similar margin. Height then sets the stride itself; weight touches only the calorie line.
How accurate is the converted distance?
Good enough to track weekly trends, not to certify a course. Stride factors are averages, and a real stride shifts with speed, footwear, and terrain. Counting steps over one measured 400 m track lap shows exactly how your stride compares with the estimate.
Does this work in metric and imperial units?
Yes — height accepts centimeters or inches, weight accepts kilograms or pounds, and the result reports miles and kilometers together. Any mix you enter is normalized before the stride math runs.
Why do the calories differ from my fitness tracker?
Trackers blend heart rate, cadence, and proprietary stride models; this tool applies a flat distance-based cost of about 0.53 kcal per kg per km for walking and roughly double for running. The two approaches land in the same ballpark yet rarely match, and neither is a lab measurement.
How many steps make a mile?
Typically 2,000–2,500 walking and fewer running — taller people need fewer. With your height entered, the distance shown for any step count reflects your personal figure rather than that generic range.
Stride factors and per-kilometer energy costs are population averages, so both distance and calories are estimates that can disagree with a GPS trace or a metabolic test. Fine for making sense of daily step counts; not a medical or dietary instrument.