Convert Milliwatts to Kilowatts

Enter the power in milliwatts below to get the value converted to kilowatts.

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Results in Kilowatts:
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1 mW = 1.0E-6 kW

How to Convert Milliwatts to Kilowatts

To convert a milliwatt measurement to a kilowatt measurement, multiply the power by the conversion ratio. One milliwatt is equal to 1.0E-6 kilowatts, so use this simple formula to convert:

kilowatts = milliwatts × 1.0E-6

The power in kilowatts is equal to the milliwatts multiplied by 1.0E-6.

For example, here's how to convert 5 milliwatts to kilowatts using the formula above.
5 mW = (5 × 1.0E-6) = 5.0E-6 kW

Milliwatts and kilowatts are both units used to measure power. Keep reading to learn more about each unit of measure.

Milliwatts

One milliwatt is the power equal to 1/1,000 of a watt, or the energy consumption at a rate of 1/1,000 of a joule per second.

The milliwatt is a multiple of the watt, which is the SI derived unit for power. In the metric system, "milli" is the prefix for 10-3. Milliwatts can be abbreviated as mW, for example 1 milliwatt can be written as 1 mW.

Kilowatts

One kilowatt is the power equal to 1,000 watts, or the energy consumption at a rate of 1,000 joules per second.

The kilowatt is a multiple of the watt, which is the SI derived unit for power. In the metric system, "kilo" is the prefix for 103. Kilowatts can be abbreviated as kW, for example 1 kilowatt can be written as 1 kW.

Milliwatt Measurements and Equivalent Kilowatt Conversions

Common milliwatt values converted to the equivalent kilowatt value
Milliwatts Kilowatts
1 mW 0.000001 kW
2 mW 0.000002 kW
3 mW 0.000003 kW
4 mW 0.000004 kW
5 mW 0.000005 kW
6 mW 0.000006 kW
7 mW 0.000007 kW
8 mW 0.000008 kW
9 mW 0.000009 kW
10 mW 0.00001 kW
11 mW 0.000011 kW
12 mW 0.000012 kW
13 mW 0.000013 kW
14 mW 0.000014 kW
15 mW 0.000015 kW
16 mW 0.000016 kW
17 mW 0.000017 kW
18 mW 0.000018 kW
19 mW 0.000019 kW
20 mW 0.00002 kW
21 mW 0.000021 kW
22 mW 0.000022 kW
23 mW 0.000023 kW
24 mW 0.000024 kW
25 mW 0.000025 kW
26 mW 0.000026 kW
27 mW 0.000027 kW
28 mW 0.000028 kW
29 mW 0.000029 kW
30 mW 0.00003 kW
31 mW 0.000031 kW
32 mW 0.000032 kW
33 mW 0.000033 kW
34 mW 0.000034 kW
35 mW 0.000035 kW
36 mW 0.000036 kW
37 mW 0.000037 kW
38 mW 0.000038 kW
39 mW 0.000039 kW
40 mW 0.00004 kW

More Milliwatt Power Conversions

SI Units
Convert to Watts
1 mW is equal to 0.001 watts
Convert to Microwatts
1 mW is equal to 1,000 microwatts
Convert to Megawatts
1 mW is equal to 1.0E-9 megawatts
US Customary & Imperial Units
Convert to Mechanical Horsepower
1 mW is equal to 1.341E-6 mechanical horsepower
Convert to Electric Horsepower
1 mW is equal to 1.3405E-6 electric horsepower
Convert to Btu Per Hour
1 mW is equal to 0.003412 btu per hour
Other Units
Convert to Kilocalories Per Hour
1 mW is equal to 0.00086 kilocalories per hour