How many watts are in 1 kilowatt?

1 kW equals 1000 W. This is an exact conversion factor defined by NIST.

How do I convert kilowatts to watts?

Multiply the value in kW by the conversion factor. For example, 10 kW = 10000 W. Use our calculator above for instant results.

Is the kilowatts to watts conversion exact?

Yes, this conversion is mathematically exact based on the international definition of these units (NIST SP 811).

Can I convert kilowatts to watts offline?

Yes! OmniConvert runs entirely in your browser — no internet connection needed after the page loads. Your data never leaves your device, ensuring complete privacy.

What is the difference between kilowatts and watts?

Kilowatts (kW) and Watts (W) are both units of power but belong to different measurement systems. 1 kW = 1000 W. Use the converter above to switch between them instantly.

Kilowatts to Watts (kW → W) — Free Online Converter

kW → W Reference Table

kW	W
0.001 kW	1 W
0.002 kW	2 W
0.003 kW	3 W
0.004 kW	4 W
0.005 kW	5 W
0.006 kW	6 W
0.007 kW	7 W
0.008 kW	8 W
0.009 kW	9 W
0.01 kW	10 W
0.02 kW	20 W
0.03 kW	30 W
0.04 kW	40 W
0.05 kW	50 W
0.06 kW	60 W
0.07 kW	70 W
0.08 kW	80 W
0.09 kW	90 W
0.1 kW	100 W
0.2 kW	200 W
0.3 kW	300 W
0.4 kW	400 W
0.5 kW	500 W
0.6 kW	600 W
0.7 kW	700 W
0.8 kW	800 W
0.9 kW	900 W
1 kW	1000 W
1.5 kW	1500 W
2 kW	2000 W
2.5 kW	2500 W
3 kW	3000 W
3.5 kW	3500 W
4 kW	4000 W
4.5 kW	4500 W
5 kW	5000 W
5.5 kW	5500 W
6 kW	6000 W
6.5 kW	6500 W
7 kW	7000 W
7.5 kW	7500 W
8 kW	8000 W
8.5 kW	8500 W
9 kW	9000 W
9.5 kW	9500 W
10 kW	10000 W
11 kW	11000 W
12 kW	12000 W
13 kW	13000 W
14 kW	14000 W
15 kW	15000 W
16 kW	16000 W
17 kW	17000 W
18 kW	18000 W
19 kW	19000 W
20 kW	20000 W
25 kW	25000 W
30 kW	30000 W
35 kW	35000 W
40 kW	40000 W
45 kW	45000 W
50 kW	50000 W
55 kW	55000 W
60 kW	60000 W
65 kW	65000 W
70 kW	70000 W
75 kW	75000 W
80 kW	80000 W
85 kW	85000 W
90 kW	90000 W
95 kW	95000 W
100 kW	100000 W
120 kW	120000 W
125 kW	125000 W
130 kW	130000 W
140 kW	140000 W
150 kW	150000 W
160 kW	160000 W
175 kW	175000 W
180 kW	180000 W
200 kW	200000 W
225 kW	225000 W
250 kW	250000 W
275 kW	275000 W
300 kW	300000 W
350 kW	350000 W
400 kW	400000 W
450 kW	450000 W
500 kW	500000 W
600 kW	600000 W
700 kW	700000 W
750 kW	750000 W
800 kW	800000 W
900 kW	900000 W
1000 kW	1000000 W
1200 kW	1200000 W
1250 kW	1250000 W
1500 kW	1500000 W
1750 kW	1750000 W
2000 kW	2000000 W
2500 kW	2500000 W
3000 kW	3000000 W
4000 kW	4000000 W
4500 kW	4500000 W
5000 kW	5000000 W
6000 kW	6000000 W
7000 kW	7000000 W
7500 kW	7500000 W
8000 kW	8000000 W
9000 kW	9000000 W
10000 kW	10000000 W
15000 kW	15000000 W
20000 kW	20000000 W
25000 kW	25000000 W
50000 kW	50000000 W
75000 kW	75000000 W
100000 kW	100000000 W

Values based on NIST SP 811 conversion factors

Why Convert Kilowatts to Watts?

Converting between kilowatts (kW) and watts (W) is one of the most common power conversions. Whether for engineering, cooking, travel, or science, knowing how to quickly convert kW to W saves time and prevents errors.

Power conversions (kW to W) are essential for automotive enthusiasts, electrical engineers, and athletes. Car buyers frequently convert horsepower to kilowatts to compare engine performance across international brands. In electrical engineering, sizing generators and motors requires consistent power units to prevent overloads and ensure compatibility. Cyclists and rowers use power meters to track output in watts, converting these figures to estimate calorie burn or compare efforts. Misinterpreting power ratings can result in buying underpowered equipment or damaging electrical systems, highlighting the need for accurate conversion tools.

How to Convert Kilowatts to Watts

To convert kilowatts to watts, use the following formula:

W = kW × 1000

Example: 1 kW = 1000 W

For example, 5 kW = 5000 W, 10 kW = 10000 W, and 100 kW = 100000 W. For larger values, 1000 kW = 1000000 W. Conversely, 1 W = 0.001 kW. Our calculator above performs this conversion instantly with full precision — no rounding errors.

Common Use Cases

A split-type air conditioner: 1.5 kW = 1500 W
A central air conditioning unit: 3 kW = 3000 W
An LED light bulb (10W): 0.01 kW = 10 W
Rooftop solar panel system for a home: 5 kW = 5000 W

Common Mistakes to Avoid

kW vs kWh: kW is power (rate), kWh is energy (total used).
HP variations: Mechanical HP (~745.7W) vs Metric HP (~735.5W).
Apparent Power: Watts vs Volt-Amps (VA) differ due to power factor.

Pro Tips

LED bulbs: A 10W LED replaces a 60W incandescent (saves energy).
Appliance labels: Check the back label for Wattage to avoid overloading strips.
Solar panels: Ratings are 'Peak Watts' (ideal conditions), expect less in reality.

What is a Kilowatt?

The kilowatt (kW) is a unit of power equal to 1,000 watts. It measures the rate at which energy is used or generated.

Kilowatts are used to measure the power output of engines (motors), heaters, and residential electricity consumption rates.

What is a Watt?

The watt (W) is the SI derived unit of power. Defined as one joule per second. Named after James Watt.

Watts are used universally to measure the rate of energy transfer, commonly for light bulbs, electronics, and small appliances.

Kilowatts → Watts

Kilowatts to Watts Formula