How do I compute the cost of electricity to run 1 appliance for 1 hour?

The appliance is 1000 watts. The cost of electricity is $0.14 per Kilowatt hour. Thank you.|||Megan is right. the other two are way wrong.





And it's so simple.





1000 watts is 1kw


1kw for 1 hour is 1 kw-hr


1kw-hr at 14垄 per kw-hr is 14垄








ZAZ, you are totally confused. there is no such thing as "Kilo-Joule Hour" energy multiplied by time is ?? who knows what.


Energy divided by time is power.|||Watts are in units of Joules per Second.


Your appliance uses 1000 Joules/Second, then.





The cost of electricity in your area is $0.14 for every Kilo-Joule Hour (a kilo-Joule is a thousand Jules).


Thus 1000 Jules = 1 Kilo Joule. So the appliance uses 1 Kilowatt of electricity every second (this is about 10 times the amount of an ordinary light bulb).





Now we need to convert seconds to hours for the appliance's electricity consumption.


There are 3600 seconds in an hour (simply doing 60s/min*60min/hr). Hence, the appliance uses 1/3600 th Kilowatt hour of electricity, every hour.


The cost for one hour is then: 0.14*1/3600 = $0.000038.|||Follow the units





1000watts * (1 kw/1000watts) * ( $0.14/kilowatt*hour)*(1hour)=$0.14|||the guy is right cause the appliance is in watts and the price is in Kilowatt hours