About Power Converter Tool
Published: Last Updated:
This Power Converter converts between watts (W), kilowatts (kW), megawatts (MW), horsepower (mechanical and metric), BTU per hour, foot-pounds per minute, and calories per second. Used in automotive engineering, HVAC, electrical systems, and appliance energy rating.
Key Features
- Converts W, kW, MW, GW, mechanical hp, metric hp, BTU/hr, ft-lbf/min.
- Real-time conversion.
- Runs in your browser.
How to Use the Tool
- Enter a power value.
- Select the unit.
- All equivalent power values appear.
Core Benefits
- Automotive: compare vehicle power ratings between hp and kW.
- HVAC: convert air conditioning capacity between BTU/hr and kW.
- Electrical: convert appliance wattage to horsepower for generator sizing.
Common Use Cases
- Comparing a 300 hp car engine to kW (223.7 kW) for European market specifications.
- Air conditioning: converting a 12,000 BTU/hr unit to kW (3.52 kW).
- Industrial motor: converting 7.5 kW to horsepower (10.05 hp).
Pro Tips
- 1 mechanical horsepower (US) = 745.7 W. 1 metric horsepower (PS/CV) = 735.5 W — slightly different.
- 1 kW = 3,412.14 BTU/hr. 1 ton of refrigeration = 12,000 BTU/hr = 3.517 kW.
Use this free Power Converter to instantly convert between units. Works in any browser on any device — no sign-up required.