Convert Milliwatts to Watts

Enter your milliwatt value in the form below to get the value calculated in watts.

Results in Watts:

1 mW = 0.001 W

How to Convert Milliwatts to Watts Using an Easy Conversion Formula

Convert milliwatts to watts with this simple formula:

watts = milliwatts × 0.001

Converting a milliwatt power measurement to a watt measurement involves multiplying your power by the conversion ratio to find the result. A milliwatt is equal to 0.001 watts, so to convert simply multiply by 0.001.

For example:

5 mW = (5 × 0.001) = 0.005 W

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

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 Watts to Milliwatts

Milliwatt Measurements and Equivalent Watt Conversions

Common milliwatt values converted to the equivalent watt value
Milliwatts	Watts
1 mW	0.001 W
2 mW	0.002 W
3 mW	0.003 W
4 mW	0.004 W
5 mW	0.005 W
6 mW	0.006 W
7 mW	0.007 W
8 mW	0.008 W
9 mW	0.009 W
10 mW	0.01 W
11 mW	0.011 W
12 mW	0.012 W
13 mW	0.013 W
14 mW	0.014 W
15 mW	0.015 W
16 mW	0.016 W
17 mW	0.017 W
18 mW	0.018 W
19 mW	0.019 W
20 mW	0.02 W
21 mW	0.021 W
22 mW	0.022 W
23 mW	0.023 W
24 mW	0.024 W
25 mW	0.025 W
26 mW	0.026 W
27 mW	0.027 W
28 mW	0.028 W
29 mW	0.029 W
30 mW	0.03 W
31 mW	0.031 W
32 mW	0.032 W
33 mW	0.033 W
34 mW	0.034 W
35 mW	0.035 W
36 mW	0.036 W
37 mW	0.037 W
38 mW	0.038 W
39 mW	0.039 W
40 mW	0.04 W