Power Converter
Convert between W, kW, MW, metric horsepower (PS), and horsepower (hp).
Result
Informational only; verify critical results independently.
How to use
- Enter the power rating from a motor nameplate, EV spec, or utility bill.
- Select watts, kilowatts, megawatts, mechanical hp, or metric PS as given.
- Convert to the unit used in another country’s brochure or forum.
- Compare electric kW to combustion hp for rough cross-shopping (efficiency differs).
- Use kW↔hp for cars; W for appliances; MW for industrial equipment.
- Round for display—manufacturers often quote one significant style.
Examples
- 100 kW electric motor to hp
- 250 hp (US) to kW (EV or car spec)
- 150 PS (metric) to hp and kW
- 2,000 W appliance to kW
- 1.5 MW generator to kW
- 12 hp lawn tractor to kW
FAQ
- US hp vs metric PS?
- PS (Pferdestärke) ≈ metric horsepower; US mechanical hp differs slightly—pick the labeled unit.
- Shaft hp vs electrical kW?
- Conversion is unit math only; motor efficiency maps electrical kW to mechanical output.
- Why kW for EVs?
- SI units dominate in global EV specs; US marketing still cites hp.
- Brake vs wheel horsepower?
- Not distinguished here—enter the number your source already rolled up.
- Can I convert BTU/h?
- If not listed, convert BTU/h to watts via 1 W ≈ 3.41214 BTU/h first.
- Local calculation?
- Yes—all in your browser.
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Last updated: 2025-09-16