How to convert power in watts (W) to milliwatts (mW).
One watt is equal to 1000 milliwatts:
1W = 1000mW
Watts to milliwatts conversion formula
The power in milliwatts P(mW) is equal to 1000 times the power in watts P(W):
P(mW) = 1000 · P(W)
Example
Convert 5W to milliwatts:
P(mW) = 1000 · 5W = 5000mW