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Free online power conversion tools

Power conversion calculator. Convert power units.

Power unit conversion calculator

Enter the power in one of the text boxes and press the Convert button:

mW
W
kW
MW
GW
dBm
dBW
hp(I)
hp(E)
BTUIT/hr

Power conversion

Currently, we have around 929 calculators and conversion tables to help you "do the math" quickly in areas such as:

And we are still developing more. Our goal is to become the one-stop, go-to site for people who need to make quick calculations or who need to find quick answer for basic conversions.

Additionally, we believe the internet should be a source of free information. Therefore, all of our tools and services are completely free, with no registration required. We coded and developed each calculator individually and put each one through strict, comprehensive testing. However, please inform us if you notice even the slightest error – your input is extremely valuable to us. While most calculators on Justfreetools.com are designed to be universally applicable for worldwide usage, some are for specific countries only.

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