Kilowatts to Watts
Convert kilowatts to watts instantly — one kilowatt is 1000 watts.
| Kilowatts | Watts |
|---|---|
| 1 kW | 1000 W |
| 2 kW | 2000 W |
| 3 kW | 3000 W |
| 5 kW | 5000 W |
| 10 kW | 10000 W |
| 25 kW | 25000 W |
| 50 kW | 50000 W |
| 100 kW | 100000 W |
How to use
- Enter a value in the Kilowatts field.
- The Watts figure appears immediately — no button to press.
- Typing in the Watts field converts back to Kilowatts the same way.
- Use the reference table for the values that come up most often.
Kilowatts to Watts formula
Converting kilowatts to watts is a single multiplication by 1000.
W = kW × 1000
Put another way, one kilowatt is exactly 1,000 watts.
Why this factor: the kilowatt and the watt are both defined against the watt, so dividing one definition by the other gives 1000 directly. Both definitions are set out in full below.
To go the other way, divide by 1000 — or use the Watts to Kilowatts converter, which is the same calculation reversed.
Worked example
Given 150 kW, multiplying by 1000 yields 150000 W.
150 kW × 1000 = 150000 W
The converter above does this for any value you type, in either direction.
What is a kilowatt?
A kilowatt is 1,000 watts, the practical unit for substantial electrical loads.
Definition: Exactly 1,000 watts.
Where it is used: Electric motor and vehicle output, heating systems, EV charger ratings, and solar array capacity.
What is a watt?
The watt is the SI unit of power — the rate of one joule of energy per second.
Definition: Defined as 1 J/s. Named after James Watt.
Where it is used: Appliance and light-bulb ratings, audio output, and all scientific power calculations.
Kilowatts vs Watts
The kilowatt is a metric unit while the watt is an SI unit. That is why the factor between them is not a round number: the two systems were defined independently and only later tied together by exact agreement.
Frequently asked questions
How many watts are in a kilowatt?
One kilowatt equals 1000 watts.
What is the formula to convert kilowatts to watts?
Multiply the number of kilowatts by 1000. To reverse it, divide by 1000 instead.
How do I convert watts back to kilowatts?
Divide by 1000, which is the same as multiplying by 0.001.
How many watts are in 10 kilowatts?
10 kW works out to 10000 W.
How is the kilowatt defined?
Exactly 1,000 watts.