Convert watts to kilowatts
1 W = 0.001 kW — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.001kW
As a fraction: 1/1000
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1 W = 0.001 kW
Show this value in all 21 power units
- Terawatts TW 1e-12
- Gigawatts GW 1e-9
- Megawatts MW 0.000 001
- Kilowatts kW 0.001
- Watts W 1
- Milliwatts mW 1000
- Microwatts µW 1 000 000
- Nanowatts nW 1 000 000 000
- Horsepower (mechanical)s hp 0.001 341 022 089 6
- Horsepower (metric)s PS 0.001 359 621 617 3
- Horsepower (electric)s hp (E) 0.001 340 482 573 73
- Horsepower (boiler)s hp (S) 0.000 101 931 042 065
- BTU per hours BTU/h 3.412 141 633 13
- BTU per seconds BTU/s 0.000 947 817 120 313
- Ton of refrigerations RT 0.000 284 345 136 094
- Calorie per seconds cal/s 0.239 005 736 138
- Kilocalorie per hours kcal/h 0.860 420 650 096
- Foot-pound per seconds ft·lbf/s 0.737 562 149 277
- Erg per seconds erg/s 10 000 000
- Volt-amperes VA 1
- Kilovolt-amperes kVA 0.001
Every row is Watt (W) converted through the watt, in exact rational arithmetic.
How to convert watts to kilowatts
Multiply the number of watts by 0.001 to get kilowatts.
The exact factor is 0.001 — as a fraction, 1/1000.
Watt to Kilowatt conversion table
| Watts (W) | Kilowatts (kW) |
|---|---|
| 1 W | 0.001 |
| 2 W | 0.002 |
| 3 W | 0.003 |
| 5 W | 0.005 |
| 10 W | 0.01 |
| 20 W | 0.02 |
| 25 W | 0.025 |
| 50 W | 0.05 |
| 100 W | 0.1 |
| 250 W | 0.25 |
| 500 W | 0.5 |
| 1000 W | 1 |
Kilowatt to Watt conversion table
| Kilowatts (kW) | Watts (W) |
|---|---|
| 1 kW | 1000 |
| 2 kW | 2000 |
| 3 kW | 3000 |
| 5 kW | 5000 |
| 10 kW | 10 000 |
| 20 kW | 20 000 |
| 25 kW | 25 000 |
| 50 kW | 50 000 |
| 100 kW | 100 000 |
| 250 kW | 250 000 |
| 500 kW | 500 000 |
| 1000 kW | 1 000 000 |
Frequently asked
How many kilowatts are in a watt?
One watt equals 0.001 kilowatts (W → kW). That figure is exact, not rounded.
How do you convert watts to kilowatts?
Multiply the number of watts by 0.001 to get kilowatts.
What is 1 kW in watts?
One kilowatt is 1000 watts.
What is 10 W in kW?
10 W = 0.01 kW.