Convert Watts to Milliwatts

Enter your watt value in the form below to get the value calculated in milliwatts.

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Results in Milliwatts:
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1 W = 1,000 mW

How to Convert Watts to Milliwatts

Convert watts to milliwatts with this simple formula:

milliwatts = watts × 1,000

Converting a watt power measurement to a milliwatt measurement involves multiplying the power by the conversion ratio to find the result. One watt is equal to 1,000 milliwatts, so to convert simply multiply by 1,000.

For example, here's how to convert 5 watts to milliwatts using the formula above.
5 W = (5 × 1,000) = 5,000 mW

Watts and milliwatts are both units used to measure power. Learn more about power and find more power measurement conversion calculators. Watts are a power measurement and can be abbreviated as W, for example 1 W. Milliwatts are a power measurement and can be abbreviated as mW, for example 1 mW.

A watt is equal to the rate of energy of one joule per second and is a standard unit of power measurement under the International System of Units (SI). You might also find our watts to amps calculator or our watts to kilowatt-hours calculator useful.

Convert Milliwatts to Watts

Watt Measurements and Equivalent Milliwatt Conversions

Common watt values converted to the equivalent milliwatt value
Watts Milliwatts
1 W 1,000 mW
2 W 2,000 mW
3 W 3,000 mW
4 W 4,000 mW
5 W 5,000 mW
6 W 6,000 mW
7 W 7,000 mW
8 W 8,000 mW
9 W 9,000 mW
10 W 10,000 mW
11 W 11,000 mW
12 W 12,000 mW
13 W 13,000 mW
14 W 14,000 mW
15 W 15,000 mW
16 W 16,000 mW
17 W 17,000 mW
18 W 18,000 mW
19 W 19,000 mW
20 W 20,000 mW
21 W 21,000 mW
22 W 22,000 mW
23 W 23,000 mW
24 W 24,000 mW
25 W 25,000 mW
26 W 26,000 mW
27 W 27,000 mW
28 W 28,000 mW
29 W 29,000 mW
30 W 30,000 mW
31 W 31,000 mW
32 W 32,000 mW
33 W 33,000 mW
34 W 34,000 mW
35 W 35,000 mW
36 W 36,000 mW
37 W 37,000 mW
38 W 38,000 mW
39 W 39,000 mW
40 W 40,000 mW

More Watt Power Conversions

Convert to Microwatts
1 W is equal to 1,000,000 microwatts
Convert to Kilowatts
1 W is equal to 0.001 kilowatts
Convert to Megawatts
1 W is equal to 1.0E-6 megawatts
Convert to Mechanical Horsepower
1 W is equal to 0.001341 mechanical horsepower
Convert to Electric Horsepower
1 W is equal to 0.00134 electric horsepower
Convert to Btu Per Hour
1 W is equal to 3.412142 btu per hour
Convert to Kilocalories Per Hour
1 W is equal to 0.860421 kilocalories per hour