Who this calculator is for
Use it if you walk on a treadmill or under-desk walking pad and want a step number your console does not show, or want to check a tracker that seems off. You need only the speed on the display and how long you walked.
How steps are calculated from speed and time
Distance = speed × time. Steps = distance ÷ step length. Step length comes from your height (about 41% of height) or the value you enter. Steps per minute is the step total divided by minutes.
Calories use the ACSM walking equation: oxygen use rises with speed and with incline. We convert oxygen use to calories at 5 kcal per litre. See our methodology for the rest of the site's formulas.
Walking pad vs treadmill
A walking pad is a low, compact belt for slow walking, often at a desk, usually up to about 6 km/h (3.7 mph) with no incline or handrails. A treadmill is larger, goes faster, and usually has incline. The step maths is the same; the main difference is speed and incline range. For indoor versus outdoor calories, see treadmill vs outdoor walking.
Examples (175 cm male, 70 kg, flat)
| Speed | Time | Steps | Distance | Active kcal |
|---|---|---|---|---|
| 3 km/h (1.9 mph) | 60 min | ~4,130 | 3.0 km (1.9 mi) | ~105 |
| 4 km/h (2.5 mph) | 30 min | ~2,750 | 2.0 km (1.2 mi) | ~70 |
| 5 km/h (3.1 mph) | 30 min | ~3,440 | 2.5 km (1.6 mi) | ~90 |
| 5 km/h (3.1 mph) | 60 min | ~6,890 | 5.0 km (3.1 mi) | ~175 |
| 6 km/h (3.7 mph) | 45 min | ~6,200 | 4.5 km (2.8 mi) | ~155 |
Limits of this estimate
- Step length changes with speed; this tool keeps it constant. Measure your own step for best results.
- The calorie equation is meant for walking speeds of about 3–6 km/h. Very slow or jogging speeds are less accurate.
- Holding the handrails lowers the real energy cost.
- Treadmill belt speed displays can be a few percent off.
- This is not medical advice. See our disclaimer.
Sources: American College of Sports Medicine, ACSM's Guidelines for Exercise Testing and Prescription (metabolic equation for walking); stride-to-height ratios commonly used in pedometer setup guides.