Convert Watt (W) (w) to Kilowatt (kW) (kw)
Category: Power
1500 w = 1.5 kw
High-precision rounding: 6 decimals
How to convert watt (w) to kilowatt (kw)
We convert by pivoting through the SI base unit for Power and applying exact factors where applicable.
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Quick conversion table
Handy values for Watt (W) → Kilowatt (kW). Click a value to open that exact result.
Conversion formula
Linear unit conversions use standardized factors; many are exact by definition (e.g., 1 in = 25.4 mm, 1 ft = 0.3048 m).
Common mistakes
- Mixing metric horsepower with mechanical horsepower; prefer kW for consistency.
Unit facts
- Watt (W): Watt (W) is the SI unit of power: 1 W = 1 J/s.
- Kilowatt (kW): A kilowatt equals 1,000 W; used for appliances, motors, and solar systems.
About Power
Power is the rate of energy transfer (J/s). Watts and kilowatts dominate, with horsepower used historically in vehicles and machinery. Choosing kW vs hp is often a matter of audience and regulation.
About Watt (W)
Watt (W)
SI power unit equal to 1 J/s. Used for electrical devices, light output (W vs lm), and mechanical power.
History: Named after James Watt; central to power engineering and efficiency ratings.
About Kilowatt (kW)
Kilowatt (kW)
Equals 1,000 W. Typical scale for motors, EV chargers, and household peak loads.
History: Scaled SI multiple that fits common machinery and grid discussions.
Related conversions from w
- w → hp Horsepower (metric)
Related conversions to kw
- hp → kw Horsepower (metric)