Key Facts
- 1 mechanical horsepower = 745.7 watts. Every peak-HP claim converts directly.
- A standard US kitchen circuit is 15 A at 120 V = 1800 W maximum.
- About 1440 W is available continuously under the 80% rule for continuous loads.
- Peak wattage typically runs two to three times the continuous rating.
- Peak horsepower is measured with the blade stalled — not an operating state.
- No test standard governs peak watts or peak HP for consumer blenders, which is why figures vary so widely between brands.
- Amperage is the verifiable figure. Amps × 120 V = real watts, and amps are printed on the appliance label.
- “3 peak HP” implies about 2237 W — more than a 15 A circuit can supply.
Full sourcing and per-model detail: the Peak Watt Reality Index.