In 1 watts there are 0.001 kilowatts. Meanwhile in 1 kilowatts there are 1,000 watts. Keep reading to learn more about each unit of measure and how they are calculated. Or just use the Kilowatts to Watts calculator above to convert any number.
* Values rounded to 6 decimal places for readability
To convert watts (W) to kilowatts (kW), divide by 1,000.
Formula:
Quick examples:
Tip:
To convert watts (W) to kilowatts (kW), divide by 1,000.
Formula: kW = W ÷ 1,000
Example: 2,500 W ÷ 1,000 = 2.5 kW
A watt is a small unit of power. A kilowatt is a larger unit of power.
1 kilowatt equals 1,000 watts, so kW makes big numbers easier to read.
1,000 watts equals 1 kilowatt.
1,000 W = 1 kW
500 watts equals 0.5 kilowatts.
500 W ÷ 1,000 = 0.5 kW
1,500 watts equals 1.5 kilowatts.
1,500 W ÷ 1,000 = 1.5 kW
2,000 watts equals 2 kilowatts.
2,000 W ÷ 1,000 = 2 kW
3,500 watts equals 3.5 kilowatts.
3,500 W ÷ 1,000 = 3.5 kW
To convert kilowatts to watts, multiply by 1,000.
Formula: W = kW × 1,000
Example: 2.5 kW × 1,000 = 2,500 W
Kilowatts keep numbers shorter. Many common devices draw hundreds or thousands of watts, so kW is easier to scan and compare.
No. Watts and kilowatts measure power (how fast energy is used).
Watt-hours (Wh) and kilowatt-hours (kWh) measure energy (power over time).
Energy formula: kWh = kW × hours
Power in kW helps you find energy use in kWh, which is what power bills use.
Step 1: Convert watts to kW (W ÷ 1,000).
Step 2: Multiply by hours used to get kWh (kW × hours).
Then multiply kWh by your rate per kWh.
No. The power stays the same. Only the unit changes. It’s like changing inches to feet.
Move the decimal three places to the left.
Example: 4,200 W becomes about 4.2 kW.
Yes. The unit conversion is the same for AC and DC. The only change is the label, not the power type.
kW is the device’s power rating. It shows how much power it uses or can deliver at a given load.
Forgetting to divide by 1,000, or dividing by 100 instead.
Keep it simple: W ÷ 1,000 = kW.
The Calculate Box tool to convert watts to kilowatts uses the open source script Convert.js to convert units of measurement. To use this tool, simply type a watts value in the box and have it instantly converted to kilowatts.