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Incline vs speed
A little incline does a lot. Walking 2.0 mph at 4% is a little more work than 3.0 mph on the flat, without having to walk any faster.
| Incline | 1.5 mph | 2.0 mph | 2.5 mph | 3.0 mph | 3.5 mph |
|---|---|---|---|---|---|
| 0% | 2.1 | 2.5 | 2.9 | 3.3 | 3.7 |
| 2% | 2.6 | 3.1 | 3.6 | 4.1 | 4.6 |
| 4% | 3.0 | 3.6 | 4.3 | 5.0 | 5.6 |
| 6% | 3.4 | 4.2 | 5.0 | 5.8 | 6.6 |
| 8% | 3.8 | 4.7 | 5.7 | 6.6 | 7.5 |
| 10% | 4.2 | 5.3 | 6.4 | 7.4 | 8.5 |
What that means in calories#
For a 250 lb person, 30 minutes at 2.0 mph burns about 151 kcal on the flat, 216 kcal at 4% and 282 kcal at 8%.
When to use which#
- Start flat. Build minutes before adding either speed or incline.
- If walking faster feels unsteady, a gentle incline (1–3%) adds effort at a safe pace.
- If your knees, hips, back or Achilles complain on a slope, stay flat and add speed or time instead.
- Don't hold the rails tightly on an incline: it cancels much of the extra work and strains your shoulders.
The equation is a population estimate and overstates effort a bit for very slow walking; real numbers vary. See sources.
Last reviewed October 30, 2026 · Sources · General information, not medical advice.