How much treadmill motor power do I actually need?

For walking and light jogging, 2.0–2.5 HP continuous is generally enough. For regular running, reviewers across specialist communities recommend at least 3.0 CHP, and serious daily runners typically look at 3.5 CHP or more. Be skeptical of 'peak HP' numbers on budget Amazon listings — they are not directly comparable to the continuous-duty ratings that established brands publish.