Treadmill specifications quote motor power in horsepower (HP), but there are two figures that can sit side by side: continuous horsepower and peak horsepower. They are not the same, and the difference matters when you compare machines.
Peak horsepower
Peak horsepower is the highest output the motor can reach for a short moment. It is measured under ideal conditions, such as at the instant of start-up or under a brief extra load. A motor can produce this level only for seconds, so a peak figure flatters the machine. A treadmill quoting 4.0 HP peak may have a continuous rating around half that figure.
Continuous horsepower (CHP)
Continuous horsepower is the power the motor can deliver for a sustained period without overheating. It better reflects how the machine behaves during a 30 or 60 minute run. When a product page lists only one number without saying which kind it is, treat it with caution, since it is often the peak figure.
Rough guide for continuous power
- Around 1.0 to 1.5 CHP: suitable for walking and light jogging by a lightweight user. Walking pads and compact folding treadmills usually fall here.
- Around 2.0 to 2.5 CHP: suitable for regular jogging and household use by several people.
- 3.0 CHP and above: intended for frequent running, higher speeds and heavier users. This range is common on machines built for heavy home use.
These ranges are general guidance. The right level depends on your body weight, your running speed, how often you train and how long each session lasts. Higher power also means a larger and heavier machine.
Other figures that matter alongside motor power
- Maximum user weight: the rated load of the frame and motor, usually 100 to 150 kg on home models. Pick a model with a margin above your own weight.
- Top speed: in kilometres per hour. Walking pads often stop at about 6 km/h; running machines reach 16 km/h or more.
- Running surface: a wider and longer belt feels safer for running. Typical lengths are 100 to 150 cm.
- Incline: manual or motorised, adds effort without extra speed.
- Cushioning: reduces impact on joints during longer sessions.
Using a treadmill safely
Attach the safety key to your clothing, start slowly and follow the manufacturer's instructions. If you have a health condition or have been inactive for a long time, ask a doctor before starting an exercise programme.