Watt is the SI unit of power.
In the metric system, milli is the prefix for 10–³.
Therefore, a milliwatt (mW) is equal to one thousandth of a watt.
Formula to convert mW to W.
Since we know that a mW is equal to one thousandth of a watt.
Therefore, to convert mW to W, we divide the milliwatt value by 1,000.
Power in W = Power in mW ÷ 1,000
Convert 5,000 milliwatts to watts.
= 5,000 ÷ 1,000
= 5 watts