How to convert power in milliwatts (mW) to watts (W).
One watt is equal to 1000 milliwatts:
1W = 1000mW
milliwatts to watts conversion formula
The power in watts P(W) is equal to the power in milliwatts P(mW), divided by 1000:
P(W) = P(mW) / 1000
Example
Convert 5mW to watts:
P(W) = 5mW / 1000 = 0.005W