🔌 Power Converter

Convert between watts, kilowatts, horsepower and BTU/h. Car engines, appliances and HVAC systems are rated in different power units — 1 hp = 745.7 W.

From

1 W = 0.001 kW

Precision

1 watts = 0.001 kilowatts

1 × 0.001 = 0.001

1 W equals 0.001 kW, so multiplying by 0.001 converts the value. The result describes the exact same quantity — only the measuring stick changes.

Rate this tool:

Anonymous — no tracking

Popular power conversions

Unit	Symbol	Definition
Watt	W	The watt (W) is the SI unit of power — one joule per second. Light bulbs, chargers and speakers are rated in watts.
Kilowatt	kW	A kilowatt (kW) is 1,000 watts. Electric vehicle motors, home appliances and solar systems are rated in kilowatts; 1 kW ≈ 1.34 hp.
Megawatt	MW	A megawatt (MW) is one million watts. Power plants and wind turbines are rated in megawatts; 1 MW supplies roughly 750–1,000 homes.
Horsepower (mechanical)	hp	Mechanical horsepower (hp) is exactly 745.6998715823 watts — 550 foot-pounds per second, defined by James Watt. US and UK car engines are rated in this horsepower.
Metric horsepower	PS	Metric horsepower (PS, from German "Pferdestärke") is exactly 735.49875 watts — about 1.4% smaller than mechanical hp. European and Japanese car specs commonly use PS.
BTU per hour	BTU/h	BTU per hour (BTU/h) is the US rating unit for heating and cooling equipment, about 0.293 watts. A 12,000 BTU/h air conditioner equals 3.52 kW of cooling.