# Question #26469

Nov 11, 2014

Electric Meters usually measure in KWH units. KWH is acronym for Kilo Watt Hour. It's basically units of Work/Energy. You can do the math for the Kilo Watt Hour. It's simple.

$K W H = 1000 \cdot 60 \cdot 60$ Watt-Sec
$\Rightarrow K W H = 3.6 \cdot {10}^{6}$Watt-Sec

We know that, Power = (Work)/(Time)
Units of Power are Watt, Work are Joules and Time are Seconds. So, Watt-Sec is nothing but Joules.

So, $K W H = 3.6$Mega Joules

One KWH is often referred to as one unit in electrical meters.