Kilowatt to Watt Formula
W = kW x 1000
Conversion factors follow SI relationships published by BIPM and IEC, where those standards apply.
Kilowatt to Watt Converter
Quick Answer
1 kW = 1000 W
Formula: Watt = Kilowatt x 1000
Quick values
Worked examples
Convert 1 kW to W
W = 1 x 1000
Result: 1 kW = 1000 W
Convert 10 kW to W
W = 10 x 1000
Result: 10 kW = 10000 W
Convert 100 kW to W
W = 100 x 1000
Result: 100 kW = 100000 W
About Kilowatt and Watt
Multiply kilowatts by 1,000 to get watts. Use this when a utility or EV listing in kW must match a breaker, inverter, or appliance label in W.
Category hub: Power Conversion · Conversion charts · Conversion formulas
Kilowatt to Watt Conversion Table
| Kilowatt (kW) | Watt (W) |
|---|---|
| 0.1 kW | 100 W |
| 0.25 kW | 250 W |
| 0.5 kW | 500 W |
| 0.75 kW | 750 W |
| 1 kW | 1000 W |
| 2 kW | 2000 W |
| 5 kW | 5000 W |
| 10 kW | 10000 W |
| 25 kW | 25000 W |
| 50 kW | 50000 W |
Browse all conversion charts → · Browse conversion formulas →
Practical use cases for Kilowatt to Watt
Motor and Drive Selection
Nameplates mix horsepower and kilowatts. Specifying a replacement motor requires converting so the electrical supply and mechanical load match.
Generator and Plant Sizing
Prime-mover ratings may be in horsepower while electrical output is in kW or kVA. Planners convert before comparing mechanical and electrical capacity.
HVAC Equipment
Fans, pumps, and chillers are cataloged in horsepower, kW, or tons of refrigeration. Designers convert to the unit used on the project schedule.
Automotive and Marine
Engine output is advertised in horsepower in some markets and kilowatts in others. Comparing vehicles requires a consistent power unit.
Renewable Energy
Inverter and turbine ratings are in kW or MW while some legacy documents still use horsepower. Conversion keeps interconnection studies consistent.
Workshop and Tooling
Machine-tool spindles and air compressors are often labeled in horsepower. Electrical planning converts that rating to kW for feeder and breaker sizing.
Kilowatt to Watt FAQs
Common questions about converting kilowatt to watt.
How do you convert kilowatts to watts?
Multiply kilowatts by 1,000. Example: 0.75 kW = 750 W, 2 kW = 2,000 W, 11 kW = 11,000 W (a common EV AC charger).
What is 3.5 kW in watts?
3.5 × 1,000 = 3,500 W. That is a typical whole-house tankless-heater stage or a large range circuit.
Does this include power factor?
No. Watts and kilowatts here are real power. Apparent power in kVA needs power factor. Do not use this page for kWh or kVA.
Why do solar datasheets mix W and kW?
Modules are rated in W; inverters and interconnection studies use kW. Dividing nameplate watts by 1,000 is the only conversion required.
Charts and printable PDF
Use the matching kilowatt / watt chart when you need a printable table or offline reference.
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