Power Converter
Convert between watts, kilowatts, horsepower, BTU/hour, and more power units.
Power Converter
Enter a value and select units to convert
1 W = 0.001 kW
Common Values
| Watt | Kilowatt |
|---|---|
| 0.001 W | 1.0000e-6 kW |
| 0.01 W | 1.0000e-5 kW |
| 0.1 W | 0.0001 kW |
| 1 W | 0.001 kW |
| 2 W | 0.002 kW |
| 5 W | 0.005 kW |
| 10 W | 0.01 kW |
| 25 W | 0.025 kW |
| 50 W | 0.05 kW |
| 100 W | 0.1 kW |
| 1000 W | 1 kW |
Available Units
Watt
W
Kilowatt
kW
Megawatt
MW
Horsepower (mechanical)
hp
Horsepower (metric)
PS
BTU/hour
BTU/h
Foot-pound/second
ft·lbf/s
Calorie/second
cal/s
Related Converters
About Power Conversion
The Power Converter allows you to convert between 8 different units including Watt, Kilowatt, Megawatt, Horsepower (mechanical), Horsepower (metric), and 3 more.
Simply enter a value, select the source and target units, and get instant, accurate results. This converter is part of the Common converters category on FastConvert.
Whether you're a student, professional, or just need a quick conversion, FastConvert's Power Converter delivers precise results in real-time. All calculations run directly in your browser — no data is sent to any server.
Frequently Asked Questions
How many watts are in a horsepower?
1 mechanical horsepower equals 745.7 watts. 1 metric horsepower (PS) equals 735.5 watts.
What is the difference between kW and kWh?
kW (kilowatt) measures power — the rate of energy transfer. kWh (kilowatt-hour) measures energy — the total amount used over time.
How do I convert horsepower to kilowatts?
Multiply horsepower by 0.7457. Example: 200 hp = 149.14 kW.
What is a megawatt?
1 megawatt = 1,000 kilowatts = 1,000,000 watts. Large power plants are rated in megawatts.
Is this power converter free?
Yes, completely free. No registration needed.