Watts (W) to Kilowatts (kW) Conversion
Watts
The watt (W) is the SI derived unit of power, defined as one joule per second (J/s = kg·m²·s⁻³), representing the rate of energy transfer or conversion. Named after Scottish engineer James Watt, whose steam engine improvements launched the Industrial Revolution, the watt is the coherent unit for all forms of power — mechanical, electrical, thermal, and acoustic. A human at rest produces about 80 W of thermal power; a professional cyclist sustains approximately 400 W during a race; a lightning bolt peaks at around 10¹² W for microseconds.
Kilowatts
The kilowatt (kW) is a unit of power equal to exactly 1,000 watts and is the practical unit for household appliances, vehicle engines, and small industrial machinery. Electric kettles typically consume 2–3 kW; domestic air conditioners run at 1–5 kW; EV charging stations provide 7–22 kW for home use. Engine power in electric vehicles is specified in kilowatts globally, replacing the horsepower in official EU vehicle type approval documentation.
| Watts (W) | Kilowatts (kW) |
|---|---|
| 0.1 W | 0.0001 kW |
| 1 W | 0.001 kW |
| 2 W | 0.002 kW |
| 3 W | 0.003 kW |
| 5 W | 0.005 kW |
| 10 W | 0.01 kW |
| 20 W | 0.02 kW |
| 30 W | 0.03 kW |
| 50 W | 0.05 kW |
| 100 W | 0.1 kW |
| 1000 W | 1 kW |
Frequently Asked Questions (FAQ)
How many kilowatts are in 1 watts?
1 watts (W) is exactly 0.001 kilowatts (kW).
How do I convert watts to kilowatts?
Multiply the value in watts by 0.001 to get the result in kilowatts. Or use the converter above — type any number and see the result instantly.