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Correct abbreviations for electrical units.

One thousand watts is it 1Kw or is it 1KW both are used.

Is a "board of trade unit" 1Kwh or is it one 1KWH.


Likewise 1Mw or 1 MW

And 1Mwh or 1MWH.


And spelling.

Power inverter or power invertor or is either correct.
Parents
  • In some circles K is used to mean "binary" kilo - i.e. 1024 (2^8) times rather than 1000 times - so tends to be used for quantities that naturally increase by a factor of 2 - usually computer memory.

       -  Andy.
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  • In some circles K is used to mean "binary" kilo - i.e. 1024 (2^8) times rather than 1000 times - so tends to be used for quantities that naturally increase by a factor of 2 - usually computer memory.

       -  Andy.
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